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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     * <a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.io;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    import java.io.File;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.io.FileFilter;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.io.FileInputStream;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.io.FileNotFoundException;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.io.FileOutputStream;<a name="line.23"></a>
<FONT color="green">024</FONT>    import java.io.IOException;<a name="line.24"></a>
<FONT color="green">025</FONT>    import java.io.InputStream;<a name="line.25"></a>
<FONT color="green">026</FONT>    import java.io.OutputStream;<a name="line.26"></a>
<FONT color="green">027</FONT>    import java.net.URL;<a name="line.27"></a>
<FONT color="green">028</FONT>    import java.net.URLConnection;<a name="line.28"></a>
<FONT color="green">029</FONT>    import java.nio.ByteBuffer;<a name="line.29"></a>
<FONT color="green">030</FONT>    import java.nio.channels.FileChannel;<a name="line.30"></a>
<FONT color="green">031</FONT>    import java.nio.charset.Charset;<a name="line.31"></a>
<FONT color="green">032</FONT>    import java.util.ArrayList;<a name="line.32"></a>
<FONT color="green">033</FONT>    import java.util.Collection;<a name="line.33"></a>
<FONT color="green">034</FONT>    import java.util.Date;<a name="line.34"></a>
<FONT color="green">035</FONT>    import java.util.Iterator;<a name="line.35"></a>
<FONT color="green">036</FONT>    import java.util.List;<a name="line.36"></a>
<FONT color="green">037</FONT>    import java.util.zip.CRC32;<a name="line.37"></a>
<FONT color="green">038</FONT>    import java.util.zip.CheckedInputStream;<a name="line.38"></a>
<FONT color="green">039</FONT>    import java.util.zip.Checksum;<a name="line.39"></a>
<FONT color="green">040</FONT>    <a name="line.40"></a>
<FONT color="green">041</FONT>    import org.apache.commons.io.filefilter.DirectoryFileFilter;<a name="line.41"></a>
<FONT color="green">042</FONT>    import org.apache.commons.io.filefilter.FalseFileFilter;<a name="line.42"></a>
<FONT color="green">043</FONT>    import org.apache.commons.io.filefilter.FileFilterUtils;<a name="line.43"></a>
<FONT color="green">044</FONT>    import org.apache.commons.io.filefilter.IOFileFilter;<a name="line.44"></a>
<FONT color="green">045</FONT>    import org.apache.commons.io.filefilter.SuffixFileFilter;<a name="line.45"></a>
<FONT color="green">046</FONT>    import org.apache.commons.io.filefilter.TrueFileFilter;<a name="line.46"></a>
<FONT color="green">047</FONT>    import org.apache.commons.io.output.NullOutputStream;<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>    /**<a name="line.49"></a>
<FONT color="green">050</FONT>     * General file manipulation utilities.<a name="line.50"></a>
<FONT color="green">051</FONT>     * &lt;p&gt;<a name="line.51"></a>
<FONT color="green">052</FONT>     * Facilities are provided in the following areas:<a name="line.52"></a>
<FONT color="green">053</FONT>     * &lt;ul&gt;<a name="line.53"></a>
<FONT color="green">054</FONT>     * &lt;li&gt;writing to a file<a name="line.54"></a>
<FONT color="green">055</FONT>     * &lt;li&gt;reading from a file<a name="line.55"></a>
<FONT color="green">056</FONT>     * &lt;li&gt;make a directory including parent directories<a name="line.56"></a>
<FONT color="green">057</FONT>     * &lt;li&gt;copying files and directories<a name="line.57"></a>
<FONT color="green">058</FONT>     * &lt;li&gt;deleting files and directories<a name="line.58"></a>
<FONT color="green">059</FONT>     * &lt;li&gt;converting to and from a URL<a name="line.59"></a>
<FONT color="green">060</FONT>     * &lt;li&gt;listing files and directories by filter and extension<a name="line.60"></a>
<FONT color="green">061</FONT>     * &lt;li&gt;comparing file content<a name="line.61"></a>
<FONT color="green">062</FONT>     * &lt;li&gt;file last changed date<a name="line.62"></a>
<FONT color="green">063</FONT>     * &lt;li&gt;calculating a checksum<a name="line.63"></a>
<FONT color="green">064</FONT>     * &lt;/ul&gt;<a name="line.64"></a>
<FONT color="green">065</FONT>     * &lt;p&gt;<a name="line.65"></a>
<FONT color="green">066</FONT>     * Origin of code: Excalibur, Alexandria, Commons-Utils<a name="line.66"></a>
<FONT color="green">067</FONT>     *<a name="line.67"></a>
<FONT color="green">068</FONT>     * @author &lt;a href="mailto:burton@relativity.yi.org"&gt;Kevin A. Burton&lt;/A&gt;<a name="line.68"></a>
<FONT color="green">069</FONT>     * @author &lt;a href="mailto:sanders@apache.org"&gt;Scott Sanders&lt;/a&gt;<a name="line.69"></a>
<FONT color="green">070</FONT>     * @author &lt;a href="mailto:dlr@finemaltcoding.com"&gt;Daniel Rall&lt;/a&gt;<a name="line.70"></a>
<FONT color="green">071</FONT>     * @author &lt;a href="mailto:Christoph.Reck@dlr.de"&gt;Christoph.Reck&lt;/a&gt;<a name="line.71"></a>
<FONT color="green">072</FONT>     * @author &lt;a href="mailto:peter@apache.org"&gt;Peter Donald&lt;/a&gt;<a name="line.72"></a>
<FONT color="green">073</FONT>     * @author &lt;a href="mailto:jefft@apache.org"&gt;Jeff Turner&lt;/a&gt;<a name="line.73"></a>
<FONT color="green">074</FONT>     * @author Matthew Hawthorne<a name="line.74"></a>
<FONT color="green">075</FONT>     * @author &lt;a href="mailto:jeremias@apache.org"&gt;Jeremias Maerki&lt;/a&gt;<a name="line.75"></a>
<FONT color="green">076</FONT>     * @author Stephen Colebourne<a name="line.76"></a>
<FONT color="green">077</FONT>     * @author Ian Springer<a name="line.77"></a>
<FONT color="green">078</FONT>     * @author Chris Eldredge<a name="line.78"></a>
<FONT color="green">079</FONT>     * @author Jim Harrington<a name="line.79"></a>
<FONT color="green">080</FONT>     * @author Niall Pemberton<a name="line.80"></a>
<FONT color="green">081</FONT>     * @author Sandy McArthur<a name="line.81"></a>
<FONT color="green">082</FONT>     * @version $Id: FileUtils.java 1003647 2010-10-01 20:53:59Z niallp $<a name="line.82"></a>
<FONT color="green">083</FONT>     */<a name="line.83"></a>
<FONT color="green">084</FONT>    public class FileUtils {<a name="line.84"></a>
<FONT color="green">085</FONT>    <a name="line.85"></a>
<FONT color="green">086</FONT>        /**<a name="line.86"></a>
<FONT color="green">087</FONT>         * Instances should NOT be constructed in standard programming.<a name="line.87"></a>
<FONT color="green">088</FONT>         */<a name="line.88"></a>
<FONT color="green">089</FONT>        public FileUtils() {<a name="line.89"></a>
<FONT color="green">090</FONT>            super();<a name="line.90"></a>
<FONT color="green">091</FONT>        }<a name="line.91"></a>
<FONT color="green">092</FONT>    <a name="line.92"></a>
<FONT color="green">093</FONT>        /**<a name="line.93"></a>
<FONT color="green">094</FONT>         * The number of bytes in a kilobyte.<a name="line.94"></a>
<FONT color="green">095</FONT>         */<a name="line.95"></a>
<FONT color="green">096</FONT>        public static final long ONE_KB = 1024;<a name="line.96"></a>
<FONT color="green">097</FONT>    <a name="line.97"></a>
<FONT color="green">098</FONT>        /**<a name="line.98"></a>
<FONT color="green">099</FONT>         * The number of bytes in a megabyte.<a name="line.99"></a>
<FONT color="green">100</FONT>         */<a name="line.100"></a>
<FONT color="green">101</FONT>        public static final long ONE_MB = ONE_KB * ONE_KB;<a name="line.101"></a>
<FONT color="green">102</FONT>    <a name="line.102"></a>
<FONT color="green">103</FONT>        /**<a name="line.103"></a>
<FONT color="green">104</FONT>         * The number of bytes in a 50 MB.<a name="line.104"></a>
<FONT color="green">105</FONT>         */<a name="line.105"></a>
<FONT color="green">106</FONT>        private static final long FIFTY_MB = ONE_MB * 50;<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>        /**<a name="line.108"></a>
<FONT color="green">109</FONT>         * The number of bytes in a gigabyte.<a name="line.109"></a>
<FONT color="green">110</FONT>         */<a name="line.110"></a>
<FONT color="green">111</FONT>        public static final long ONE_GB = ONE_KB * ONE_MB;<a name="line.111"></a>
<FONT color="green">112</FONT>    <a name="line.112"></a>
<FONT color="green">113</FONT>        /**<a name="line.113"></a>
<FONT color="green">114</FONT>         * An empty array of type &lt;code&gt;File&lt;/code&gt;.<a name="line.114"></a>
<FONT color="green">115</FONT>         */<a name="line.115"></a>
<FONT color="green">116</FONT>        public static final File[] EMPTY_FILE_ARRAY = new File[0];<a name="line.116"></a>
<FONT color="green">117</FONT>    <a name="line.117"></a>
<FONT color="green">118</FONT>        /**<a name="line.118"></a>
<FONT color="green">119</FONT>         * The UTF-8 character set, used to decode octets in URLs.<a name="line.119"></a>
<FONT color="green">120</FONT>         */<a name="line.120"></a>
<FONT color="green">121</FONT>        private static final Charset UTF8 = Charset.forName("UTF-8");<a name="line.121"></a>
<FONT color="green">122</FONT>    <a name="line.122"></a>
<FONT color="green">123</FONT>        //-----------------------------------------------------------------------<a name="line.123"></a>
<FONT color="green">124</FONT>        /**<a name="line.124"></a>
<FONT color="green">125</FONT>         * Returns the path to the system temporary directory.<a name="line.125"></a>
<FONT color="green">126</FONT>         * <a name="line.126"></a>
<FONT color="green">127</FONT>         * @return the path to the system temporary directory.<a name="line.127"></a>
<FONT color="green">128</FONT>         * <a name="line.128"></a>
<FONT color="green">129</FONT>         * @since Commons IO 2.0<a name="line.129"></a>
<FONT color="green">130</FONT>         */<a name="line.130"></a>
<FONT color="green">131</FONT>        public static String getTempDirectoryPath() {<a name="line.131"></a>
<FONT color="green">132</FONT>            return System.getProperty("java.io.tmpdir");<a name="line.132"></a>
<FONT color="green">133</FONT>        }<a name="line.133"></a>
<FONT color="green">134</FONT>        <a name="line.134"></a>
<FONT color="green">135</FONT>        /**<a name="line.135"></a>
<FONT color="green">136</FONT>         * Returns a {@link File} representing the system temporary directory.<a name="line.136"></a>
<FONT color="green">137</FONT>         * <a name="line.137"></a>
<FONT color="green">138</FONT>         * @return the system temporary directory. <a name="line.138"></a>
<FONT color="green">139</FONT>         * <a name="line.139"></a>
<FONT color="green">140</FONT>         * @since Commons IO 2.0<a name="line.140"></a>
<FONT color="green">141</FONT>         */<a name="line.141"></a>
<FONT color="green">142</FONT>        public static File getTempDirectory() {<a name="line.142"></a>
<FONT color="green">143</FONT>            return new File(getTempDirectoryPath());<a name="line.143"></a>
<FONT color="green">144</FONT>        }<a name="line.144"></a>
<FONT color="green">145</FONT>        <a name="line.145"></a>
<FONT color="green">146</FONT>        /**<a name="line.146"></a>
<FONT color="green">147</FONT>         * Returns the path to the user's home directory.<a name="line.147"></a>
<FONT color="green">148</FONT>         * <a name="line.148"></a>
<FONT color="green">149</FONT>         * @return the path to the user's home directory.<a name="line.149"></a>
<FONT color="green">150</FONT>         * <a name="line.150"></a>
<FONT color="green">151</FONT>         * @since Commons IO 2.0<a name="line.151"></a>
<FONT color="green">152</FONT>         */<a name="line.152"></a>
<FONT color="green">153</FONT>        public static String getUserDirectoryPath() {<a name="line.153"></a>
<FONT color="green">154</FONT>            return System.getProperty("user.home");<a name="line.154"></a>
<FONT color="green">155</FONT>        }<a name="line.155"></a>
<FONT color="green">156</FONT>        <a name="line.156"></a>
<FONT color="green">157</FONT>        /**<a name="line.157"></a>
<FONT color="green">158</FONT>         * Returns a {@link File} representing the user's home directory.<a name="line.158"></a>
<FONT color="green">159</FONT>         * <a name="line.159"></a>
<FONT color="green">160</FONT>         * @return the user's home directory.<a name="line.160"></a>
<FONT color="green">161</FONT>         * <a name="line.161"></a>
<FONT color="green">162</FONT>         * @since Commons IO 2.0<a name="line.162"></a>
<FONT color="green">163</FONT>         */<a name="line.163"></a>
<FONT color="green">164</FONT>        public static File getUserDirectory() {<a name="line.164"></a>
<FONT color="green">165</FONT>            return new File(getUserDirectoryPath());<a name="line.165"></a>
<FONT color="green">166</FONT>        }<a name="line.166"></a>
<FONT color="green">167</FONT>        <a name="line.167"></a>
<FONT color="green">168</FONT>        //-----------------------------------------------------------------------<a name="line.168"></a>
<FONT color="green">169</FONT>        /**<a name="line.169"></a>
<FONT color="green">170</FONT>         * Opens a {@link FileInputStream} for the specified file, providing better<a name="line.170"></a>
<FONT color="green">171</FONT>         * error messages than simply calling &lt;code&gt;new FileInputStream(file)&lt;/code&gt;.<a name="line.171"></a>
<FONT color="green">172</FONT>         * &lt;p&gt;<a name="line.172"></a>
<FONT color="green">173</FONT>         * At the end of the method either the stream will be successfully opened,<a name="line.173"></a>
<FONT color="green">174</FONT>         * or an exception will have been thrown.<a name="line.174"></a>
<FONT color="green">175</FONT>         * &lt;p&gt;<a name="line.175"></a>
<FONT color="green">176</FONT>         * An exception is thrown if the file does not exist.<a name="line.176"></a>
<FONT color="green">177</FONT>         * An exception is thrown if the file object exists but is a directory.<a name="line.177"></a>
<FONT color="green">178</FONT>         * An exception is thrown if the file exists but cannot be read.<a name="line.178"></a>
<FONT color="green">179</FONT>         * <a name="line.179"></a>
<FONT color="green">180</FONT>         * @param file  the file to open for input, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.180"></a>
<FONT color="green">181</FONT>         * @return a new {@link FileInputStream} for the specified file<a name="line.181"></a>
<FONT color="green">182</FONT>         * @throws FileNotFoundException if the file does not exist<a name="line.182"></a>
<FONT color="green">183</FONT>         * @throws IOException if the file object is a directory<a name="line.183"></a>
<FONT color="green">184</FONT>         * @throws IOException if the file cannot be read<a name="line.184"></a>
<FONT color="green">185</FONT>         * @since Commons IO 1.3<a name="line.185"></a>
<FONT color="green">186</FONT>         */<a name="line.186"></a>
<FONT color="green">187</FONT>        public static FileInputStream openInputStream(File file) throws IOException {<a name="line.187"></a>
<FONT color="green">188</FONT>            if (file.exists()) {<a name="line.188"></a>
<FONT color="green">189</FONT>                if (file.isDirectory()) {<a name="line.189"></a>
<FONT color="green">190</FONT>                    throw new IOException("File '" + file + "' exists but is a directory");<a name="line.190"></a>
<FONT color="green">191</FONT>                }<a name="line.191"></a>
<FONT color="green">192</FONT>                if (file.canRead() == false) {<a name="line.192"></a>
<FONT color="green">193</FONT>                    throw new IOException("File '" + file + "' cannot be read");<a name="line.193"></a>
<FONT color="green">194</FONT>                }<a name="line.194"></a>
<FONT color="green">195</FONT>            } else {<a name="line.195"></a>
<FONT color="green">196</FONT>                throw new FileNotFoundException("File '" + file + "' does not exist");<a name="line.196"></a>
<FONT color="green">197</FONT>            }<a name="line.197"></a>
<FONT color="green">198</FONT>            return new FileInputStream(file);<a name="line.198"></a>
<FONT color="green">199</FONT>        }<a name="line.199"></a>
<FONT color="green">200</FONT>    <a name="line.200"></a>
<FONT color="green">201</FONT>        //-----------------------------------------------------------------------<a name="line.201"></a>
<FONT color="green">202</FONT>        /**<a name="line.202"></a>
<FONT color="green">203</FONT>         * Opens a {@link FileOutputStream} for the specified file, checking and<a name="line.203"></a>
<FONT color="green">204</FONT>         * creating the parent directory if it does not exist.<a name="line.204"></a>
<FONT color="green">205</FONT>         * &lt;p&gt;<a name="line.205"></a>
<FONT color="green">206</FONT>         * At the end of the method either the stream will be successfully opened,<a name="line.206"></a>
<FONT color="green">207</FONT>         * or an exception will have been thrown.<a name="line.207"></a>
<FONT color="green">208</FONT>         * &lt;p&gt;<a name="line.208"></a>
<FONT color="green">209</FONT>         * The parent directory will be created if it does not exist.<a name="line.209"></a>
<FONT color="green">210</FONT>         * The file will be created if it does not exist.<a name="line.210"></a>
<FONT color="green">211</FONT>         * An exception is thrown if the file object exists but is a directory.<a name="line.211"></a>
<FONT color="green">212</FONT>         * An exception is thrown if the file exists but cannot be written to.<a name="line.212"></a>
<FONT color="green">213</FONT>         * An exception is thrown if the parent directory cannot be created.<a name="line.213"></a>
<FONT color="green">214</FONT>         * <a name="line.214"></a>
<FONT color="green">215</FONT>         * @param file  the file to open for output, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.215"></a>
<FONT color="green">216</FONT>         * @return a new {@link FileOutputStream} for the specified file<a name="line.216"></a>
<FONT color="green">217</FONT>         * @throws IOException if the file object is a directory<a name="line.217"></a>
<FONT color="green">218</FONT>         * @throws IOException if the file cannot be written to<a name="line.218"></a>
<FONT color="green">219</FONT>         * @throws IOException if a parent directory needs creating but that fails<a name="line.219"></a>
<FONT color="green">220</FONT>         * @since Commons IO 1.3<a name="line.220"></a>
<FONT color="green">221</FONT>         */<a name="line.221"></a>
<FONT color="green">222</FONT>        public static FileOutputStream openOutputStream(File file) throws IOException {<a name="line.222"></a>
<FONT color="green">223</FONT>            if (file.exists()) {<a name="line.223"></a>
<FONT color="green">224</FONT>                if (file.isDirectory()) {<a name="line.224"></a>
<FONT color="green">225</FONT>                    throw new IOException("File '" + file + "' exists but is a directory");<a name="line.225"></a>
<FONT color="green">226</FONT>                }<a name="line.226"></a>
<FONT color="green">227</FONT>                if (file.canWrite() == false) {<a name="line.227"></a>
<FONT color="green">228</FONT>                    throw new IOException("File '" + file + "' cannot be written to");<a name="line.228"></a>
<FONT color="green">229</FONT>                }<a name="line.229"></a>
<FONT color="green">230</FONT>            } else {<a name="line.230"></a>
<FONT color="green">231</FONT>                File parent = file.getParentFile();<a name="line.231"></a>
<FONT color="green">232</FONT>                if (parent != null &amp;&amp; parent.exists() == false) {<a name="line.232"></a>
<FONT color="green">233</FONT>                    if (parent.mkdirs() == false) {<a name="line.233"></a>
<FONT color="green">234</FONT>                        throw new IOException("File '" + file + "' could not be created");<a name="line.234"></a>
<FONT color="green">235</FONT>                    }<a name="line.235"></a>
<FONT color="green">236</FONT>                }<a name="line.236"></a>
<FONT color="green">237</FONT>            }<a name="line.237"></a>
<FONT color="green">238</FONT>            return new FileOutputStream(file);<a name="line.238"></a>
<FONT color="green">239</FONT>        }<a name="line.239"></a>
<FONT color="green">240</FONT>    <a name="line.240"></a>
<FONT color="green">241</FONT>        //-----------------------------------------------------------------------<a name="line.241"></a>
<FONT color="green">242</FONT>        /**<a name="line.242"></a>
<FONT color="green">243</FONT>         * Returns a human-readable version of the file size, where the input<a name="line.243"></a>
<FONT color="green">244</FONT>         * represents a specific number of bytes.<a name="line.244"></a>
<FONT color="green">245</FONT>         * <a name="line.245"></a>
<FONT color="green">246</FONT>         * If the size is over 1GB, the size is returned as the number of whole GB,<a name="line.246"></a>
<FONT color="green">247</FONT>         * i.e. the size is rounded down to the nearest GB boundary.<a name="line.247"></a>
<FONT color="green">248</FONT>         * <a name="line.248"></a>
<FONT color="green">249</FONT>         * Similarly for the 1MB and 1KB boundaries.<a name="line.249"></a>
<FONT color="green">250</FONT>         *<a name="line.250"></a>
<FONT color="green">251</FONT>         * @param size  the number of bytes<a name="line.251"></a>
<FONT color="green">252</FONT>         * @return a human-readable display value (includes units - GB, MB, KB or bytes)<a name="line.252"></a>
<FONT color="green">253</FONT>         */<a name="line.253"></a>
<FONT color="green">254</FONT>        // See https://issues.apache.org/jira/browse/IO-226 - should the rounding be changed?<a name="line.254"></a>
<FONT color="green">255</FONT>        public static String byteCountToDisplaySize(long size) {<a name="line.255"></a>
<FONT color="green">256</FONT>            String displaySize;<a name="line.256"></a>
<FONT color="green">257</FONT>    <a name="line.257"></a>
<FONT color="green">258</FONT>            if (size / ONE_GB &gt; 0) {<a name="line.258"></a>
<FONT color="green">259</FONT>                displaySize = String.valueOf(size / ONE_GB) + " GB";<a name="line.259"></a>
<FONT color="green">260</FONT>            } else if (size / ONE_MB &gt; 0) {<a name="line.260"></a>
<FONT color="green">261</FONT>                displaySize = String.valueOf(size / ONE_MB) + " MB";<a name="line.261"></a>
<FONT color="green">262</FONT>            } else if (size / ONE_KB &gt; 0) {<a name="line.262"></a>
<FONT color="green">263</FONT>                displaySize = String.valueOf(size / ONE_KB) + " KB";<a name="line.263"></a>
<FONT color="green">264</FONT>            } else {<a name="line.264"></a>
<FONT color="green">265</FONT>                displaySize = String.valueOf(size) + " bytes";<a name="line.265"></a>
<FONT color="green">266</FONT>            }<a name="line.266"></a>
<FONT color="green">267</FONT>            return displaySize;<a name="line.267"></a>
<FONT color="green">268</FONT>        }<a name="line.268"></a>
<FONT color="green">269</FONT>    <a name="line.269"></a>
<FONT color="green">270</FONT>        //-----------------------------------------------------------------------<a name="line.270"></a>
<FONT color="green">271</FONT>        /**<a name="line.271"></a>
<FONT color="green">272</FONT>         * Implements the same behaviour as the "touch" utility on Unix. It creates<a name="line.272"></a>
<FONT color="green">273</FONT>         * a new file with size 0 or, if the file exists already, it is opened and<a name="line.273"></a>
<FONT color="green">274</FONT>         * closed without modifying it, but updating the file date and time.<a name="line.274"></a>
<FONT color="green">275</FONT>         * &lt;p&gt;<a name="line.275"></a>
<FONT color="green">276</FONT>         * NOTE: As from v1.3, this method throws an IOException if the last<a name="line.276"></a>
<FONT color="green">277</FONT>         * modified date of the file cannot be set. Also, as from v1.3 this method<a name="line.277"></a>
<FONT color="green">278</FONT>         * creates parent directories if they do not exist.<a name="line.278"></a>
<FONT color="green">279</FONT>         *<a name="line.279"></a>
<FONT color="green">280</FONT>         * @param file  the File to touch<a name="line.280"></a>
<FONT color="green">281</FONT>         * @throws IOException If an I/O problem occurs<a name="line.281"></a>
<FONT color="green">282</FONT>         */<a name="line.282"></a>
<FONT color="green">283</FONT>        public static void touch(File file) throws IOException {<a name="line.283"></a>
<FONT color="green">284</FONT>            if (!file.exists()) {<a name="line.284"></a>
<FONT color="green">285</FONT>                OutputStream out = openOutputStream(file);<a name="line.285"></a>
<FONT color="green">286</FONT>                IOUtils.closeQuietly(out);<a name="line.286"></a>
<FONT color="green">287</FONT>            }<a name="line.287"></a>
<FONT color="green">288</FONT>            boolean success = file.setLastModified(System.currentTimeMillis());<a name="line.288"></a>
<FONT color="green">289</FONT>            if (!success) {<a name="line.289"></a>
<FONT color="green">290</FONT>                throw new IOException("Unable to set the last modification time for " + file);<a name="line.290"></a>
<FONT color="green">291</FONT>            }<a name="line.291"></a>
<FONT color="green">292</FONT>        }<a name="line.292"></a>
<FONT color="green">293</FONT>    <a name="line.293"></a>
<FONT color="green">294</FONT>        //-----------------------------------------------------------------------<a name="line.294"></a>
<FONT color="green">295</FONT>        /**<a name="line.295"></a>
<FONT color="green">296</FONT>         * Converts a Collection containing java.io.File instanced into array<a name="line.296"></a>
<FONT color="green">297</FONT>         * representation. This is to account for the difference between<a name="line.297"></a>
<FONT color="green">298</FONT>         * File.listFiles() and FileUtils.listFiles().<a name="line.298"></a>
<FONT color="green">299</FONT>         *<a name="line.299"></a>
<FONT color="green">300</FONT>         * @param files  a Collection containing java.io.File instances<a name="line.300"></a>
<FONT color="green">301</FONT>         * @return an array of java.io.File<a name="line.301"></a>
<FONT color="green">302</FONT>         */<a name="line.302"></a>
<FONT color="green">303</FONT>        public static File[] convertFileCollectionToFileArray(Collection&lt;File&gt; files) {<a name="line.303"></a>
<FONT color="green">304</FONT>             return files.toArray(new File[files.size()]);<a name="line.304"></a>
<FONT color="green">305</FONT>        }<a name="line.305"></a>
<FONT color="green">306</FONT>    <a name="line.306"></a>
<FONT color="green">307</FONT>        //-----------------------------------------------------------------------<a name="line.307"></a>
<FONT color="green">308</FONT>        /**<a name="line.308"></a>
<FONT color="green">309</FONT>         * Finds files within a given directory (and optionally its<a name="line.309"></a>
<FONT color="green">310</FONT>         * subdirectories). All files found are filtered by an IOFileFilter.<a name="line.310"></a>
<FONT color="green">311</FONT>         *<a name="line.311"></a>
<FONT color="green">312</FONT>         * @param files the collection of files found.<a name="line.312"></a>
<FONT color="green">313</FONT>         * @param directory the directory to search in.<a name="line.313"></a>
<FONT color="green">314</FONT>         * @param filter the filter to apply to files and directories.<a name="line.314"></a>
<FONT color="green">315</FONT>         */<a name="line.315"></a>
<FONT color="green">316</FONT>        private static void innerListFiles(Collection&lt;File&gt; files, File directory,<a name="line.316"></a>
<FONT color="green">317</FONT>                IOFileFilter filter) {<a name="line.317"></a>
<FONT color="green">318</FONT>            File[] found = directory.listFiles((FileFilter) filter);<a name="line.318"></a>
<FONT color="green">319</FONT>            if (found != null) {<a name="line.319"></a>
<FONT color="green">320</FONT>                for (File file : found) {<a name="line.320"></a>
<FONT color="green">321</FONT>                    if (file.isDirectory()) {<a name="line.321"></a>
<FONT color="green">322</FONT>                        innerListFiles(files, file, filter);<a name="line.322"></a>
<FONT color="green">323</FONT>                    } else {<a name="line.323"></a>
<FONT color="green">324</FONT>                        files.add(file);<a name="line.324"></a>
<FONT color="green">325</FONT>                    }<a name="line.325"></a>
<FONT color="green">326</FONT>                }<a name="line.326"></a>
<FONT color="green">327</FONT>            }<a name="line.327"></a>
<FONT color="green">328</FONT>        }<a name="line.328"></a>
<FONT color="green">329</FONT>    <a name="line.329"></a>
<FONT color="green">330</FONT>        /**<a name="line.330"></a>
<FONT color="green">331</FONT>         * Finds files within a given directory (and optionally its<a name="line.331"></a>
<FONT color="green">332</FONT>         * subdirectories). All files found are filtered by an IOFileFilter.<a name="line.332"></a>
<FONT color="green">333</FONT>         * &lt;p&gt;<a name="line.333"></a>
<FONT color="green">334</FONT>         * If your search should recurse into subdirectories you can pass in<a name="line.334"></a>
<FONT color="green">335</FONT>         * an IOFileFilter for directories. You don't need to bind a<a name="line.335"></a>
<FONT color="green">336</FONT>         * DirectoryFileFilter (via logical AND) to this filter. This method does<a name="line.336"></a>
<FONT color="green">337</FONT>         * that for you.<a name="line.337"></a>
<FONT color="green">338</FONT>         * &lt;p&gt;<a name="line.338"></a>
<FONT color="green">339</FONT>         * An example: If you want to search through all directories called<a name="line.339"></a>
<FONT color="green">340</FONT>         * "temp" you pass in &lt;code&gt;FileFilterUtils.NameFileFilter("temp")&lt;/code&gt;<a name="line.340"></a>
<FONT color="green">341</FONT>         * &lt;p&gt;<a name="line.341"></a>
<FONT color="green">342</FONT>         * Another common usage of this method is find files in a directory<a name="line.342"></a>
<FONT color="green">343</FONT>         * tree but ignoring the directories generated CVS. You can simply pass<a name="line.343"></a>
<FONT color="green">344</FONT>         * in &lt;code&gt;FileFilterUtils.makeCVSAware(null)&lt;/code&gt;.<a name="line.344"></a>
<FONT color="green">345</FONT>         *<a name="line.345"></a>
<FONT color="green">346</FONT>         * @param directory  the directory to search in<a name="line.346"></a>
<FONT color="green">347</FONT>         * @param fileFilter  filter to apply when finding files.<a name="line.347"></a>
<FONT color="green">348</FONT>         * @param dirFilter  optional filter to apply when finding subdirectories.<a name="line.348"></a>
<FONT color="green">349</FONT>         * If this parameter is &lt;code&gt;null&lt;/code&gt;, subdirectories will not be included in the<a name="line.349"></a>
<FONT color="green">350</FONT>         * search. Use TrueFileFilter.INSTANCE to match all directories.<a name="line.350"></a>
<FONT color="green">351</FONT>         * @return an collection of java.io.File with the matching files<a name="line.351"></a>
<FONT color="green">352</FONT>         * @see org.apache.commons.io.filefilter.FileFilterUtils<a name="line.352"></a>
<FONT color="green">353</FONT>         * @see org.apache.commons.io.filefilter.NameFileFilter<a name="line.353"></a>
<FONT color="green">354</FONT>         */<a name="line.354"></a>
<FONT color="green">355</FONT>        public static Collection&lt;File&gt; listFiles(<a name="line.355"></a>
<FONT color="green">356</FONT>                File directory, IOFileFilter fileFilter, IOFileFilter dirFilter) {<a name="line.356"></a>
<FONT color="green">357</FONT>            if (!directory.isDirectory()) {<a name="line.357"></a>
<FONT color="green">358</FONT>                throw new IllegalArgumentException(<a name="line.358"></a>
<FONT color="green">359</FONT>                        "Parameter 'directory' is not a directory");<a name="line.359"></a>
<FONT color="green">360</FONT>            }<a name="line.360"></a>
<FONT color="green">361</FONT>            if (fileFilter == null) {<a name="line.361"></a>
<FONT color="green">362</FONT>                throw new NullPointerException("Parameter 'fileFilter' is null");<a name="line.362"></a>
<FONT color="green">363</FONT>            }<a name="line.363"></a>
<FONT color="green">364</FONT>    <a name="line.364"></a>
<FONT color="green">365</FONT>            //Setup effective file filter<a name="line.365"></a>
<FONT color="green">366</FONT>            IOFileFilter effFileFilter = FileFilterUtils.and(fileFilter,<a name="line.366"></a>
<FONT color="green">367</FONT>                FileFilterUtils.notFileFilter(DirectoryFileFilter.INSTANCE));<a name="line.367"></a>
<FONT color="green">368</FONT>    <a name="line.368"></a>
<FONT color="green">369</FONT>            //Setup effective directory filter<a name="line.369"></a>
<FONT color="green">370</FONT>            IOFileFilter effDirFilter;<a name="line.370"></a>
<FONT color="green">371</FONT>            if (dirFilter == null) {<a name="line.371"></a>
<FONT color="green">372</FONT>                effDirFilter = FalseFileFilter.INSTANCE;<a name="line.372"></a>
<FONT color="green">373</FONT>            } else {<a name="line.373"></a>
<FONT color="green">374</FONT>                effDirFilter = FileFilterUtils.and(dirFilter,<a name="line.374"></a>
<FONT color="green">375</FONT>                    DirectoryFileFilter.INSTANCE);<a name="line.375"></a>
<FONT color="green">376</FONT>            }<a name="line.376"></a>
<FONT color="green">377</FONT>    <a name="line.377"></a>
<FONT color="green">378</FONT>            //Find files<a name="line.378"></a>
<FONT color="green">379</FONT>            Collection&lt;File&gt; files = new java.util.LinkedList&lt;File&gt;();<a name="line.379"></a>
<FONT color="green">380</FONT>            innerListFiles(files, directory,<a name="line.380"></a>
<FONT color="green">381</FONT>                FileFilterUtils.or(effFileFilter, effDirFilter));<a name="line.381"></a>
<FONT color="green">382</FONT>            return files;<a name="line.382"></a>
<FONT color="green">383</FONT>        }<a name="line.383"></a>
<FONT color="green">384</FONT>    <a name="line.384"></a>
<FONT color="green">385</FONT>        /**<a name="line.385"></a>
<FONT color="green">386</FONT>         * Allows iteration over the files in given directory (and optionally<a name="line.386"></a>
<FONT color="green">387</FONT>         * its subdirectories).<a name="line.387"></a>
<FONT color="green">388</FONT>         * &lt;p&gt;<a name="line.388"></a>
<FONT color="green">389</FONT>         * All files found are filtered by an IOFileFilter. This method is<a name="line.389"></a>
<FONT color="green">390</FONT>         * based on {@link #listFiles(File, IOFileFilter, IOFileFilter)}.<a name="line.390"></a>
<FONT color="green">391</FONT>         *<a name="line.391"></a>
<FONT color="green">392</FONT>         * @param directory  the directory to search in<a name="line.392"></a>
<FONT color="green">393</FONT>         * @param fileFilter  filter to apply when finding files.<a name="line.393"></a>
<FONT color="green">394</FONT>         * @param dirFilter  optional filter to apply when finding subdirectories.<a name="line.394"></a>
<FONT color="green">395</FONT>         * If this parameter is &lt;code&gt;null&lt;/code&gt;, subdirectories will not be included in the<a name="line.395"></a>
<FONT color="green">396</FONT>         * search. Use TrueFileFilter.INSTANCE to match all directories.<a name="line.396"></a>
<FONT color="green">397</FONT>         * @return an iterator of java.io.File for the matching files<a name="line.397"></a>
<FONT color="green">398</FONT>         * @see org.apache.commons.io.filefilter.FileFilterUtils<a name="line.398"></a>
<FONT color="green">399</FONT>         * @see org.apache.commons.io.filefilter.NameFileFilter<a name="line.399"></a>
<FONT color="green">400</FONT>         * @since Commons IO 1.2<a name="line.400"></a>
<FONT color="green">401</FONT>         */<a name="line.401"></a>
<FONT color="green">402</FONT>        public static Iterator&lt;File&gt; iterateFiles(<a name="line.402"></a>
<FONT color="green">403</FONT>                File directory, IOFileFilter fileFilter, IOFileFilter dirFilter) {<a name="line.403"></a>
<FONT color="green">404</FONT>            return listFiles(directory, fileFilter, dirFilter).iterator();<a name="line.404"></a>
<FONT color="green">405</FONT>        }<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>        //-----------------------------------------------------------------------<a name="line.407"></a>
<FONT color="green">408</FONT>        /**<a name="line.408"></a>
<FONT color="green">409</FONT>         * Converts an array of file extensions to suffixes for use<a name="line.409"></a>
<FONT color="green">410</FONT>         * with IOFileFilters.<a name="line.410"></a>
<FONT color="green">411</FONT>         *<a name="line.411"></a>
<FONT color="green">412</FONT>         * @param extensions  an array of extensions. Format: {"java", "xml"}<a name="line.412"></a>
<FONT color="green">413</FONT>         * @return an array of suffixes. Format: {".java", ".xml"}<a name="line.413"></a>
<FONT color="green">414</FONT>         */<a name="line.414"></a>
<FONT color="green">415</FONT>        private static String[] toSuffixes(String[] extensions) {<a name="line.415"></a>
<FONT color="green">416</FONT>            String[] suffixes = new String[extensions.length];<a name="line.416"></a>
<FONT color="green">417</FONT>            for (int i = 0; i &lt; extensions.length; i++) {<a name="line.417"></a>
<FONT color="green">418</FONT>                suffixes[i] = "." + extensions[i];<a name="line.418"></a>
<FONT color="green">419</FONT>            }<a name="line.419"></a>
<FONT color="green">420</FONT>            return suffixes;<a name="line.420"></a>
<FONT color="green">421</FONT>        }<a name="line.421"></a>
<FONT color="green">422</FONT>    <a name="line.422"></a>
<FONT color="green">423</FONT>    <a name="line.423"></a>
<FONT color="green">424</FONT>        /**<a name="line.424"></a>
<FONT color="green">425</FONT>         * Finds files within a given directory (and optionally its subdirectories)<a name="line.425"></a>
<FONT color="green">426</FONT>         * which match an array of extensions.<a name="line.426"></a>
<FONT color="green">427</FONT>         *<a name="line.427"></a>
<FONT color="green">428</FONT>         * @param directory  the directory to search in<a name="line.428"></a>
<FONT color="green">429</FONT>         * @param extensions  an array of extensions, ex. {"java","xml"}. If this<a name="line.429"></a>
<FONT color="green">430</FONT>         * parameter is &lt;code&gt;null&lt;/code&gt;, all files are returned.<a name="line.430"></a>
<FONT color="green">431</FONT>         * @param recursive  if true all subdirectories are searched as well<a name="line.431"></a>
<FONT color="green">432</FONT>         * @return an collection of java.io.File with the matching files<a name="line.432"></a>
<FONT color="green">433</FONT>         */<a name="line.433"></a>
<FONT color="green">434</FONT>        public static Collection&lt;File&gt; listFiles(<a name="line.434"></a>
<FONT color="green">435</FONT>                File directory, String[] extensions, boolean recursive) {<a name="line.435"></a>
<FONT color="green">436</FONT>            IOFileFilter filter;<a name="line.436"></a>
<FONT color="green">437</FONT>            if (extensions == null) {<a name="line.437"></a>
<FONT color="green">438</FONT>                filter = TrueFileFilter.INSTANCE;<a name="line.438"></a>
<FONT color="green">439</FONT>            } else {<a name="line.439"></a>
<FONT color="green">440</FONT>                String[] suffixes = toSuffixes(extensions);<a name="line.440"></a>
<FONT color="green">441</FONT>                filter = new SuffixFileFilter(suffixes);<a name="line.441"></a>
<FONT color="green">442</FONT>            }<a name="line.442"></a>
<FONT color="green">443</FONT>            return listFiles(directory, filter,<a name="line.443"></a>
<FONT color="green">444</FONT>                (recursive ? TrueFileFilter.INSTANCE : FalseFileFilter.INSTANCE));<a name="line.444"></a>
<FONT color="green">445</FONT>        }<a name="line.445"></a>
<FONT color="green">446</FONT>    <a name="line.446"></a>
<FONT color="green">447</FONT>        /**<a name="line.447"></a>
<FONT color="green">448</FONT>         * Allows iteration over the files in a given directory (and optionally<a name="line.448"></a>
<FONT color="green">449</FONT>         * its subdirectories) which match an array of extensions. This method<a name="line.449"></a>
<FONT color="green">450</FONT>         * is based on {@link #listFiles(File, String[], boolean)}.<a name="line.450"></a>
<FONT color="green">451</FONT>         *<a name="line.451"></a>
<FONT color="green">452</FONT>         * @param directory  the directory to search in<a name="line.452"></a>
<FONT color="green">453</FONT>         * @param extensions  an array of extensions, ex. {"java","xml"}. If this<a name="line.453"></a>
<FONT color="green">454</FONT>         * parameter is &lt;code&gt;null&lt;/code&gt;, all files are returned.<a name="line.454"></a>
<FONT color="green">455</FONT>         * @param recursive  if true all subdirectories are searched as well<a name="line.455"></a>
<FONT color="green">456</FONT>         * @return an iterator of java.io.File with the matching files<a name="line.456"></a>
<FONT color="green">457</FONT>         * @since Commons IO 1.2<a name="line.457"></a>
<FONT color="green">458</FONT>         */<a name="line.458"></a>
<FONT color="green">459</FONT>        public static Iterator&lt;File&gt; iterateFiles(<a name="line.459"></a>
<FONT color="green">460</FONT>                File directory, String[] extensions, boolean recursive) {<a name="line.460"></a>
<FONT color="green">461</FONT>            return listFiles(directory, extensions, recursive).iterator();<a name="line.461"></a>
<FONT color="green">462</FONT>        }<a name="line.462"></a>
<FONT color="green">463</FONT>    <a name="line.463"></a>
<FONT color="green">464</FONT>        //-----------------------------------------------------------------------<a name="line.464"></a>
<FONT color="green">465</FONT>        /**<a name="line.465"></a>
<FONT color="green">466</FONT>         * Compares the contents of two files to determine if they are equal or not.<a name="line.466"></a>
<FONT color="green">467</FONT>         * &lt;p&gt;<a name="line.467"></a>
<FONT color="green">468</FONT>         * This method checks to see if the two files are different lengths<a name="line.468"></a>
<FONT color="green">469</FONT>         * or if they point to the same file, before resorting to byte-by-byte<a name="line.469"></a>
<FONT color="green">470</FONT>         * comparison of the contents.<a name="line.470"></a>
<FONT color="green">471</FONT>         * &lt;p&gt;<a name="line.471"></a>
<FONT color="green">472</FONT>         * Code origin: Avalon<a name="line.472"></a>
<FONT color="green">473</FONT>         *<a name="line.473"></a>
<FONT color="green">474</FONT>         * @param file1  the first file<a name="line.474"></a>
<FONT color="green">475</FONT>         * @param file2  the second file<a name="line.475"></a>
<FONT color="green">476</FONT>         * @return true if the content of the files are equal or they both don't<a name="line.476"></a>
<FONT color="green">477</FONT>         * exist, false otherwise<a name="line.477"></a>
<FONT color="green">478</FONT>         * @throws IOException in case of an I/O error<a name="line.478"></a>
<FONT color="green">479</FONT>         */<a name="line.479"></a>
<FONT color="green">480</FONT>        public static boolean contentEquals(File file1, File file2) throws IOException {<a name="line.480"></a>
<FONT color="green">481</FONT>            boolean file1Exists = file1.exists();<a name="line.481"></a>
<FONT color="green">482</FONT>            if (file1Exists != file2.exists()) {<a name="line.482"></a>
<FONT color="green">483</FONT>                return false;<a name="line.483"></a>
<FONT color="green">484</FONT>            }<a name="line.484"></a>
<FONT color="green">485</FONT>    <a name="line.485"></a>
<FONT color="green">486</FONT>            if (!file1Exists) {<a name="line.486"></a>
<FONT color="green">487</FONT>                // two not existing files are equal<a name="line.487"></a>
<FONT color="green">488</FONT>                return true;<a name="line.488"></a>
<FONT color="green">489</FONT>            }<a name="line.489"></a>
<FONT color="green">490</FONT>    <a name="line.490"></a>
<FONT color="green">491</FONT>            if (file1.isDirectory() || file2.isDirectory()) {<a name="line.491"></a>
<FONT color="green">492</FONT>                // don't want to compare directory contents<a name="line.492"></a>
<FONT color="green">493</FONT>                throw new IOException("Can't compare directories, only files");<a name="line.493"></a>
<FONT color="green">494</FONT>            }<a name="line.494"></a>
<FONT color="green">495</FONT>    <a name="line.495"></a>
<FONT color="green">496</FONT>            if (file1.length() != file2.length()) {<a name="line.496"></a>
<FONT color="green">497</FONT>                // lengths differ, cannot be equal<a name="line.497"></a>
<FONT color="green">498</FONT>                return false;<a name="line.498"></a>
<FONT color="green">499</FONT>            }<a name="line.499"></a>
<FONT color="green">500</FONT>    <a name="line.500"></a>
<FONT color="green">501</FONT>            if (file1.getCanonicalFile().equals(file2.getCanonicalFile())) {<a name="line.501"></a>
<FONT color="green">502</FONT>                // same file<a name="line.502"></a>
<FONT color="green">503</FONT>                return true;<a name="line.503"></a>
<FONT color="green">504</FONT>            }<a name="line.504"></a>
<FONT color="green">505</FONT>    <a name="line.505"></a>
<FONT color="green">506</FONT>            InputStream input1 = null;<a name="line.506"></a>
<FONT color="green">507</FONT>            InputStream input2 = null;<a name="line.507"></a>
<FONT color="green">508</FONT>            try {<a name="line.508"></a>
<FONT color="green">509</FONT>                input1 = new FileInputStream(file1);<a name="line.509"></a>
<FONT color="green">510</FONT>                input2 = new FileInputStream(file2);<a name="line.510"></a>
<FONT color="green">511</FONT>                return IOUtils.contentEquals(input1, input2);<a name="line.511"></a>
<FONT color="green">512</FONT>    <a name="line.512"></a>
<FONT color="green">513</FONT>            } finally {<a name="line.513"></a>
<FONT color="green">514</FONT>                IOUtils.closeQuietly(input1);<a name="line.514"></a>
<FONT color="green">515</FONT>                IOUtils.closeQuietly(input2);<a name="line.515"></a>
<FONT color="green">516</FONT>            }<a name="line.516"></a>
<FONT color="green">517</FONT>        }<a name="line.517"></a>
<FONT color="green">518</FONT>    <a name="line.518"></a>
<FONT color="green">519</FONT>        //-----------------------------------------------------------------------<a name="line.519"></a>
<FONT color="green">520</FONT>        /**<a name="line.520"></a>
<FONT color="green">521</FONT>         * Convert from a &lt;code&gt;URL&lt;/code&gt; to a &lt;code&gt;File&lt;/code&gt;.<a name="line.521"></a>
<FONT color="green">522</FONT>         * &lt;p&gt;<a name="line.522"></a>
<FONT color="green">523</FONT>         * From version 1.1 this method will decode the URL.<a name="line.523"></a>
<FONT color="green">524</FONT>         * Syntax such as &lt;code&gt;file:///my%20docs/file.txt&lt;/code&gt; will be<a name="line.524"></a>
<FONT color="green">525</FONT>         * correctly decoded to &lt;code&gt;/my docs/file.txt&lt;/code&gt;. Starting with version<a name="line.525"></a>
<FONT color="green">526</FONT>         * 1.5, this method uses UTF-8 to decode percent-encoded octets to characters.<a name="line.526"></a>
<FONT color="green">527</FONT>         * Additionally, malformed percent-encoded octets are handled leniently by<a name="line.527"></a>
<FONT color="green">528</FONT>         * passing them through literally.<a name="line.528"></a>
<FONT color="green">529</FONT>         *<a name="line.529"></a>
<FONT color="green">530</FONT>         * @param url  the file URL to convert, &lt;code&gt;null&lt;/code&gt; returns &lt;code&gt;null&lt;/code&gt;<a name="line.530"></a>
<FONT color="green">531</FONT>         * @return the equivalent &lt;code&gt;File&lt;/code&gt; object, or &lt;code&gt;null&lt;/code&gt;<a name="line.531"></a>
<FONT color="green">532</FONT>         *  if the URL's protocol is not &lt;code&gt;file&lt;/code&gt;<a name="line.532"></a>
<FONT color="green">533</FONT>         */<a name="line.533"></a>
<FONT color="green">534</FONT>        public static File toFile(URL url) {<a name="line.534"></a>
<FONT color="green">535</FONT>            if (url == null || !"file".equalsIgnoreCase(url.getProtocol())) {<a name="line.535"></a>
<FONT color="green">536</FONT>                return null;<a name="line.536"></a>
<FONT color="green">537</FONT>            } else {<a name="line.537"></a>
<FONT color="green">538</FONT>                String filename = url.getFile().replace('/', File.separatorChar);<a name="line.538"></a>
<FONT color="green">539</FONT>                filename = decodeUrl(filename);<a name="line.539"></a>
<FONT color="green">540</FONT>                return new File(filename);<a name="line.540"></a>
<FONT color="green">541</FONT>            }<a name="line.541"></a>
<FONT color="green">542</FONT>        }<a name="line.542"></a>
<FONT color="green">543</FONT>    <a name="line.543"></a>
<FONT color="green">544</FONT>        /**<a name="line.544"></a>
<FONT color="green">545</FONT>         * Decodes the specified URL as per RFC 3986, i.e. transforms<a name="line.545"></a>
<FONT color="green">546</FONT>         * percent-encoded octets to characters by decoding with the UTF-8 character<a name="line.546"></a>
<FONT color="green">547</FONT>         * set. This function is primarily intended for usage with<a name="line.547"></a>
<FONT color="green">548</FONT>         * {@link java.net.URL} which unfortunately does not enforce proper URLs. As<a name="line.548"></a>
<FONT color="green">549</FONT>         * such, this method will leniently accept invalid characters or malformed<a name="line.549"></a>
<FONT color="green">550</FONT>         * percent-encoded octets and simply pass them literally through to the<a name="line.550"></a>
<FONT color="green">551</FONT>         * result string. Except for rare edge cases, this will make unencoded URLs<a name="line.551"></a>
<FONT color="green">552</FONT>         * pass through unaltered.<a name="line.552"></a>
<FONT color="green">553</FONT>         * <a name="line.553"></a>
<FONT color="green">554</FONT>         * @param url  The URL to decode, may be &lt;code&gt;null&lt;/code&gt;.<a name="line.554"></a>
<FONT color="green">555</FONT>         * @return The decoded URL or &lt;code&gt;null&lt;/code&gt; if the input was<a name="line.555"></a>
<FONT color="green">556</FONT>         *         &lt;code&gt;null&lt;/code&gt;.<a name="line.556"></a>
<FONT color="green">557</FONT>         */<a name="line.557"></a>
<FONT color="green">558</FONT>        static String decodeUrl(String url) {<a name="line.558"></a>
<FONT color="green">559</FONT>            String decoded = url;<a name="line.559"></a>
<FONT color="green">560</FONT>            if (url != null &amp;&amp; url.indexOf('%') &gt;= 0) {<a name="line.560"></a>
<FONT color="green">561</FONT>                int n = url.length();<a name="line.561"></a>
<FONT color="green">562</FONT>                StringBuffer buffer = new StringBuffer();<a name="line.562"></a>
<FONT color="green">563</FONT>                ByteBuffer bytes = ByteBuffer.allocate(n);<a name="line.563"></a>
<FONT color="green">564</FONT>                for (int i = 0; i &lt; n;) {<a name="line.564"></a>
<FONT color="green">565</FONT>                    if (url.charAt(i) == '%') {<a name="line.565"></a>
<FONT color="green">566</FONT>                        try {<a name="line.566"></a>
<FONT color="green">567</FONT>                            do {<a name="line.567"></a>
<FONT color="green">568</FONT>                                byte octet = (byte) Integer.parseInt(url.substring(i + 1, i + 3), 16);<a name="line.568"></a>
<FONT color="green">569</FONT>                                bytes.put(octet);<a name="line.569"></a>
<FONT color="green">570</FONT>                                i += 3;<a name="line.570"></a>
<FONT color="green">571</FONT>                            } while (i &lt; n &amp;&amp; url.charAt(i) == '%');<a name="line.571"></a>
<FONT color="green">572</FONT>                            continue;<a name="line.572"></a>
<FONT color="green">573</FONT>                        } catch (RuntimeException e) {<a name="line.573"></a>
<FONT color="green">574</FONT>                            // malformed percent-encoded octet, fall through and<a name="line.574"></a>
<FONT color="green">575</FONT>                            // append characters literally<a name="line.575"></a>
<FONT color="green">576</FONT>                        } finally {<a name="line.576"></a>
<FONT color="green">577</FONT>                            if (bytes.position() &gt; 0) {<a name="line.577"></a>
<FONT color="green">578</FONT>                                bytes.flip();<a name="line.578"></a>
<FONT color="green">579</FONT>                                buffer.append(UTF8.decode(bytes).toString());<a name="line.579"></a>
<FONT color="green">580</FONT>                                bytes.clear();<a name="line.580"></a>
<FONT color="green">581</FONT>                            }<a name="line.581"></a>
<FONT color="green">582</FONT>                        }<a name="line.582"></a>
<FONT color="green">583</FONT>                    }<a name="line.583"></a>
<FONT color="green">584</FONT>                    buffer.append(url.charAt(i++));<a name="line.584"></a>
<FONT color="green">585</FONT>                }<a name="line.585"></a>
<FONT color="green">586</FONT>                decoded = buffer.toString();<a name="line.586"></a>
<FONT color="green">587</FONT>            }<a name="line.587"></a>
<FONT color="green">588</FONT>            return decoded;<a name="line.588"></a>
<FONT color="green">589</FONT>        }<a name="line.589"></a>
<FONT color="green">590</FONT>    <a name="line.590"></a>
<FONT color="green">591</FONT>        /**<a name="line.591"></a>
<FONT color="green">592</FONT>         * Converts each of an array of &lt;code&gt;URL&lt;/code&gt; to a &lt;code&gt;File&lt;/code&gt;.<a name="line.592"></a>
<FONT color="green">593</FONT>         * &lt;p&gt;<a name="line.593"></a>
<FONT color="green">594</FONT>         * Returns an array of the same size as the input.<a name="line.594"></a>
<FONT color="green">595</FONT>         * If the input is &lt;code&gt;null&lt;/code&gt;, an empty array is returned.<a name="line.595"></a>
<FONT color="green">596</FONT>         * If the input contains &lt;code&gt;null&lt;/code&gt;, the output array contains &lt;code&gt;null&lt;/code&gt; at the same<a name="line.596"></a>
<FONT color="green">597</FONT>         * index.<a name="line.597"></a>
<FONT color="green">598</FONT>         * &lt;p&gt;<a name="line.598"></a>
<FONT color="green">599</FONT>         * This method will decode the URL.<a name="line.599"></a>
<FONT color="green">600</FONT>         * Syntax such as &lt;code&gt;file:///my%20docs/file.txt&lt;/code&gt; will be<a name="line.600"></a>
<FONT color="green">601</FONT>         * correctly decoded to &lt;code&gt;/my docs/file.txt&lt;/code&gt;.<a name="line.601"></a>
<FONT color="green">602</FONT>         *<a name="line.602"></a>
<FONT color="green">603</FONT>         * @param urls  the file URLs to convert, &lt;code&gt;null&lt;/code&gt; returns empty array<a name="line.603"></a>
<FONT color="green">604</FONT>         * @return a non-&lt;code&gt;null&lt;/code&gt; array of Files matching the input, with a &lt;code&gt;null&lt;/code&gt; item<a name="line.604"></a>
<FONT color="green">605</FONT>         *  if there was a &lt;code&gt;null&lt;/code&gt; at that index in the input array<a name="line.605"></a>
<FONT color="green">606</FONT>         * @throws IllegalArgumentException if any file is not a URL file<a name="line.606"></a>
<FONT color="green">607</FONT>         * @throws IllegalArgumentException if any file is incorrectly encoded<a name="line.607"></a>
<FONT color="green">608</FONT>         * @since Commons IO 1.1<a name="line.608"></a>
<FONT color="green">609</FONT>         */<a name="line.609"></a>
<FONT color="green">610</FONT>        public static File[] toFiles(URL[] urls) {<a name="line.610"></a>
<FONT color="green">611</FONT>            if (urls == null || urls.length == 0) {<a name="line.611"></a>
<FONT color="green">612</FONT>                return EMPTY_FILE_ARRAY;<a name="line.612"></a>
<FONT color="green">613</FONT>            }<a name="line.613"></a>
<FONT color="green">614</FONT>            File[] files = new File[urls.length];<a name="line.614"></a>
<FONT color="green">615</FONT>            for (int i = 0; i &lt; urls.length; i++) {<a name="line.615"></a>
<FONT color="green">616</FONT>                URL url = urls[i];<a name="line.616"></a>
<FONT color="green">617</FONT>                if (url != null) {<a name="line.617"></a>
<FONT color="green">618</FONT>                    if (url.getProtocol().equals("file") == false) {<a name="line.618"></a>
<FONT color="green">619</FONT>                        throw new IllegalArgumentException(<a name="line.619"></a>
<FONT color="green">620</FONT>                                "URL could not be converted to a File: " + url);<a name="line.620"></a>
<FONT color="green">621</FONT>                    }<a name="line.621"></a>
<FONT color="green">622</FONT>                    files[i] = toFile(url);<a name="line.622"></a>
<FONT color="green">623</FONT>                }<a name="line.623"></a>
<FONT color="green">624</FONT>            }<a name="line.624"></a>
<FONT color="green">625</FONT>            return files;<a name="line.625"></a>
<FONT color="green">626</FONT>        }<a name="line.626"></a>
<FONT color="green">627</FONT>    <a name="line.627"></a>
<FONT color="green">628</FONT>        /**<a name="line.628"></a>
<FONT color="green">629</FONT>         * Converts each of an array of &lt;code&gt;File&lt;/code&gt; to a &lt;code&gt;URL&lt;/code&gt;.<a name="line.629"></a>
<FONT color="green">630</FONT>         * &lt;p&gt;<a name="line.630"></a>
<FONT color="green">631</FONT>         * Returns an array of the same size as the input.<a name="line.631"></a>
<FONT color="green">632</FONT>         *<a name="line.632"></a>
<FONT color="green">633</FONT>         * @param files  the files to convert<a name="line.633"></a>
<FONT color="green">634</FONT>         * @return an array of URLs matching the input<a name="line.634"></a>
<FONT color="green">635</FONT>         * @throws IOException if a file cannot be converted<a name="line.635"></a>
<FONT color="green">636</FONT>         */<a name="line.636"></a>
<FONT color="green">637</FONT>        public static URL[] toURLs(File[] files) throws IOException {<a name="line.637"></a>
<FONT color="green">638</FONT>            URL[] urls = new URL[files.length];<a name="line.638"></a>
<FONT color="green">639</FONT>    <a name="line.639"></a>
<FONT color="green">640</FONT>            for (int i = 0; i &lt; urls.length; i++) {<a name="line.640"></a>
<FONT color="green">641</FONT>                urls[i] = files[i].toURI().toURL();<a name="line.641"></a>
<FONT color="green">642</FONT>            }<a name="line.642"></a>
<FONT color="green">643</FONT>    <a name="line.643"></a>
<FONT color="green">644</FONT>            return urls;<a name="line.644"></a>
<FONT color="green">645</FONT>        }<a name="line.645"></a>
<FONT color="green">646</FONT>    <a name="line.646"></a>
<FONT color="green">647</FONT>        //-----------------------------------------------------------------------<a name="line.647"></a>
<FONT color="green">648</FONT>        /**<a name="line.648"></a>
<FONT color="green">649</FONT>         * Copies a file to a directory preserving the file date.<a name="line.649"></a>
<FONT color="green">650</FONT>         * &lt;p&gt;<a name="line.650"></a>
<FONT color="green">651</FONT>         * This method copies the contents of the specified source file<a name="line.651"></a>
<FONT color="green">652</FONT>         * to a file of the same name in the specified destination directory.<a name="line.652"></a>
<FONT color="green">653</FONT>         * The destination directory is created if it does not exist.<a name="line.653"></a>
<FONT color="green">654</FONT>         * If the destination file exists, then this method will overwrite it.<a name="line.654"></a>
<FONT color="green">655</FONT>         * &lt;p&gt;<a name="line.655"></a>
<FONT color="green">656</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; This method tries to preserve the file's last<a name="line.656"></a>
<FONT color="green">657</FONT>         * modified date/times using {@link File#setLastModified(long)}, however<a name="line.657"></a>
<FONT color="green">658</FONT>         * it is not guaranteed that the operation will succeed.<a name="line.658"></a>
<FONT color="green">659</FONT>         * If the modification operation fails, no indication is provided.<a name="line.659"></a>
<FONT color="green">660</FONT>         *<a name="line.660"></a>
<FONT color="green">661</FONT>         * @param srcFile  an existing file to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.661"></a>
<FONT color="green">662</FONT>         * @param destDir  the directory to place the copy in, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.662"></a>
<FONT color="green">663</FONT>         *<a name="line.663"></a>
<FONT color="green">664</FONT>         * @throws NullPointerException if source or destination is null<a name="line.664"></a>
<FONT color="green">665</FONT>         * @throws IOException if source or destination is invalid<a name="line.665"></a>
<FONT color="green">666</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.666"></a>
<FONT color="green">667</FONT>         * @see #copyFile(File, File, boolean)<a name="line.667"></a>
<FONT color="green">668</FONT>         */<a name="line.668"></a>
<FONT color="green">669</FONT>        public static void copyFileToDirectory(File srcFile, File destDir) throws IOException {<a name="line.669"></a>
<FONT color="green">670</FONT>            copyFileToDirectory(srcFile, destDir, true);<a name="line.670"></a>
<FONT color="green">671</FONT>        }<a name="line.671"></a>
<FONT color="green">672</FONT>    <a name="line.672"></a>
<FONT color="green">673</FONT>        /**<a name="line.673"></a>
<FONT color="green">674</FONT>         * Copies a file to a directory optionally preserving the file date.<a name="line.674"></a>
<FONT color="green">675</FONT>         * &lt;p&gt;<a name="line.675"></a>
<FONT color="green">676</FONT>         * This method copies the contents of the specified source file<a name="line.676"></a>
<FONT color="green">677</FONT>         * to a file of the same name in the specified destination directory.<a name="line.677"></a>
<FONT color="green">678</FONT>         * The destination directory is created if it does not exist.<a name="line.678"></a>
<FONT color="green">679</FONT>         * If the destination file exists, then this method will overwrite it.<a name="line.679"></a>
<FONT color="green">680</FONT>         * &lt;p&gt;<a name="line.680"></a>
<FONT color="green">681</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; Setting &lt;code&gt;preserveFileDate&lt;/code&gt; to<a name="line.681"></a>
<FONT color="green">682</FONT>         * &lt;code&gt;true&lt;/code&gt; tries to preserve the file's last modified<a name="line.682"></a>
<FONT color="green">683</FONT>         * date/times using {@link File#setLastModified(long)}, however it is<a name="line.683"></a>
<FONT color="green">684</FONT>         * not guaranteed that the operation will succeed.<a name="line.684"></a>
<FONT color="green">685</FONT>         * If the modification operation fails, no indication is provided.<a name="line.685"></a>
<FONT color="green">686</FONT>         *<a name="line.686"></a>
<FONT color="green">687</FONT>         * @param srcFile  an existing file to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.687"></a>
<FONT color="green">688</FONT>         * @param destDir  the directory to place the copy in, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.688"></a>
<FONT color="green">689</FONT>         * @param preserveFileDate  true if the file date of the copy<a name="line.689"></a>
<FONT color="green">690</FONT>         *  should be the same as the original<a name="line.690"></a>
<FONT color="green">691</FONT>         *<a name="line.691"></a>
<FONT color="green">692</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.692"></a>
<FONT color="green">693</FONT>         * @throws IOException if source or destination is invalid<a name="line.693"></a>
<FONT color="green">694</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.694"></a>
<FONT color="green">695</FONT>         * @see #copyFile(File, File, boolean)<a name="line.695"></a>
<FONT color="green">696</FONT>         * @since Commons IO 1.3<a name="line.696"></a>
<FONT color="green">697</FONT>         */<a name="line.697"></a>
<FONT color="green">698</FONT>        public static void copyFileToDirectory(File srcFile, File destDir, boolean preserveFileDate) throws IOException {<a name="line.698"></a>
<FONT color="green">699</FONT>            if (destDir == null) {<a name="line.699"></a>
<FONT color="green">700</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.700"></a>
<FONT color="green">701</FONT>            }<a name="line.701"></a>
<FONT color="green">702</FONT>            if (destDir.exists() &amp;&amp; destDir.isDirectory() == false) {<a name="line.702"></a>
<FONT color="green">703</FONT>                throw new IllegalArgumentException("Destination '" + destDir + "' is not a directory");<a name="line.703"></a>
<FONT color="green">704</FONT>            }<a name="line.704"></a>
<FONT color="green">705</FONT>            File destFile = new File(destDir, srcFile.getName());<a name="line.705"></a>
<FONT color="green">706</FONT>            copyFile(srcFile, destFile, preserveFileDate);<a name="line.706"></a>
<FONT color="green">707</FONT>        }<a name="line.707"></a>
<FONT color="green">708</FONT>    <a name="line.708"></a>
<FONT color="green">709</FONT>        /**<a name="line.709"></a>
<FONT color="green">710</FONT>         * Copies a file to a new location preserving the file date.<a name="line.710"></a>
<FONT color="green">711</FONT>         * &lt;p&gt;<a name="line.711"></a>
<FONT color="green">712</FONT>         * This method copies the contents of the specified source file to the<a name="line.712"></a>
<FONT color="green">713</FONT>         * specified destination file. The directory holding the destination file is<a name="line.713"></a>
<FONT color="green">714</FONT>         * created if it does not exist. If the destination file exists, then this<a name="line.714"></a>
<FONT color="green">715</FONT>         * method will overwrite it.<a name="line.715"></a>
<FONT color="green">716</FONT>         * &lt;p&gt;<a name="line.716"></a>
<FONT color="green">717</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; This method tries to preserve the file's last<a name="line.717"></a>
<FONT color="green">718</FONT>         * modified date/times using {@link File#setLastModified(long)}, however<a name="line.718"></a>
<FONT color="green">719</FONT>         * it is not guaranteed that the operation will succeed.<a name="line.719"></a>
<FONT color="green">720</FONT>         * If the modification operation fails, no indication is provided.<a name="line.720"></a>
<FONT color="green">721</FONT>         * <a name="line.721"></a>
<FONT color="green">722</FONT>         * @param srcFile  an existing file to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.722"></a>
<FONT color="green">723</FONT>         * @param destFile  the new file, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.723"></a>
<FONT color="green">724</FONT>         * <a name="line.724"></a>
<FONT color="green">725</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.725"></a>
<FONT color="green">726</FONT>         * @throws IOException if source or destination is invalid<a name="line.726"></a>
<FONT color="green">727</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.727"></a>
<FONT color="green">728</FONT>         * @see #copyFileToDirectory(File, File)<a name="line.728"></a>
<FONT color="green">729</FONT>         */<a name="line.729"></a>
<FONT color="green">730</FONT>        public static void copyFile(File srcFile, File destFile) throws IOException {<a name="line.730"></a>
<FONT color="green">731</FONT>            copyFile(srcFile, destFile, true);<a name="line.731"></a>
<FONT color="green">732</FONT>        }<a name="line.732"></a>
<FONT color="green">733</FONT>    <a name="line.733"></a>
<FONT color="green">734</FONT>        /**<a name="line.734"></a>
<FONT color="green">735</FONT>         * Copies a file to a new location.<a name="line.735"></a>
<FONT color="green">736</FONT>         * &lt;p&gt;<a name="line.736"></a>
<FONT color="green">737</FONT>         * This method copies the contents of the specified source file<a name="line.737"></a>
<FONT color="green">738</FONT>         * to the specified destination file.<a name="line.738"></a>
<FONT color="green">739</FONT>         * The directory holding the destination file is created if it does not exist.<a name="line.739"></a>
<FONT color="green">740</FONT>         * If the destination file exists, then this method will overwrite it.<a name="line.740"></a>
<FONT color="green">741</FONT>         * &lt;p&gt;<a name="line.741"></a>
<FONT color="green">742</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; Setting &lt;code&gt;preserveFileDate&lt;/code&gt; to<a name="line.742"></a>
<FONT color="green">743</FONT>         * &lt;code&gt;true&lt;/code&gt; tries to preserve the file's last modified<a name="line.743"></a>
<FONT color="green">744</FONT>         * date/times using {@link File#setLastModified(long)}, however it is<a name="line.744"></a>
<FONT color="green">745</FONT>         * not guaranteed that the operation will succeed.<a name="line.745"></a>
<FONT color="green">746</FONT>         * If the modification operation fails, no indication is provided.<a name="line.746"></a>
<FONT color="green">747</FONT>         *<a name="line.747"></a>
<FONT color="green">748</FONT>         * @param srcFile  an existing file to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.748"></a>
<FONT color="green">749</FONT>         * @param destFile  the new file, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.749"></a>
<FONT color="green">750</FONT>         * @param preserveFileDate  true if the file date of the copy<a name="line.750"></a>
<FONT color="green">751</FONT>         *  should be the same as the original<a name="line.751"></a>
<FONT color="green">752</FONT>         *<a name="line.752"></a>
<FONT color="green">753</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.753"></a>
<FONT color="green">754</FONT>         * @throws IOException if source or destination is invalid<a name="line.754"></a>
<FONT color="green">755</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.755"></a>
<FONT color="green">756</FONT>         * @see #copyFileToDirectory(File, File, boolean)<a name="line.756"></a>
<FONT color="green">757</FONT>         */<a name="line.757"></a>
<FONT color="green">758</FONT>        public static void copyFile(File srcFile, File destFile,<a name="line.758"></a>
<FONT color="green">759</FONT>                boolean preserveFileDate) throws IOException {<a name="line.759"></a>
<FONT color="green">760</FONT>            if (srcFile == null) {<a name="line.760"></a>
<FONT color="green">761</FONT>                throw new NullPointerException("Source must not be null");<a name="line.761"></a>
<FONT color="green">762</FONT>            }<a name="line.762"></a>
<FONT color="green">763</FONT>            if (destFile == null) {<a name="line.763"></a>
<FONT color="green">764</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.764"></a>
<FONT color="green">765</FONT>            }<a name="line.765"></a>
<FONT color="green">766</FONT>            if (srcFile.exists() == false) {<a name="line.766"></a>
<FONT color="green">767</FONT>                throw new FileNotFoundException("Source '" + srcFile + "' does not exist");<a name="line.767"></a>
<FONT color="green">768</FONT>            }<a name="line.768"></a>
<FONT color="green">769</FONT>            if (srcFile.isDirectory()) {<a name="line.769"></a>
<FONT color="green">770</FONT>                throw new IOException("Source '" + srcFile + "' exists but is a directory");<a name="line.770"></a>
<FONT color="green">771</FONT>            }<a name="line.771"></a>
<FONT color="green">772</FONT>            if (srcFile.getCanonicalPath().equals(destFile.getCanonicalPath())) {<a name="line.772"></a>
<FONT color="green">773</FONT>                throw new IOException("Source '" + srcFile + "' and destination '" + destFile + "' are the same");<a name="line.773"></a>
<FONT color="green">774</FONT>            }<a name="line.774"></a>
<FONT color="green">775</FONT>            if (destFile.getParentFile() != null &amp;&amp; destFile.getParentFile().exists() == false) {<a name="line.775"></a>
<FONT color="green">776</FONT>                if (destFile.getParentFile().mkdirs() == false) {<a name="line.776"></a>
<FONT color="green">777</FONT>                    throw new IOException("Destination '" + destFile + "' directory cannot be created");<a name="line.777"></a>
<FONT color="green">778</FONT>                }<a name="line.778"></a>
<FONT color="green">779</FONT>            }<a name="line.779"></a>
<FONT color="green">780</FONT>            if (destFile.exists() &amp;&amp; destFile.canWrite() == false) {<a name="line.780"></a>
<FONT color="green">781</FONT>                throw new IOException("Destination '" + destFile + "' exists but is read-only");<a name="line.781"></a>
<FONT color="green">782</FONT>            }<a name="line.782"></a>
<FONT color="green">783</FONT>            doCopyFile(srcFile, destFile, preserveFileDate);<a name="line.783"></a>
<FONT color="green">784</FONT>        }<a name="line.784"></a>
<FONT color="green">785</FONT>    <a name="line.785"></a>
<FONT color="green">786</FONT>        /**<a name="line.786"></a>
<FONT color="green">787</FONT>         * Internal copy file method.<a name="line.787"></a>
<FONT color="green">788</FONT>         * <a name="line.788"></a>
<FONT color="green">789</FONT>         * @param srcFile  the validated source file, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.789"></a>
<FONT color="green">790</FONT>         * @param destFile  the validated destination file, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.790"></a>
<FONT color="green">791</FONT>         * @param preserveFileDate  whether to preserve the file date<a name="line.791"></a>
<FONT color="green">792</FONT>         * @throws IOException if an error occurs<a name="line.792"></a>
<FONT color="green">793</FONT>         */<a name="line.793"></a>
<FONT color="green">794</FONT>        private static void doCopyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {<a name="line.794"></a>
<FONT color="green">795</FONT>            if (destFile.exists() &amp;&amp; destFile.isDirectory()) {<a name="line.795"></a>
<FONT color="green">796</FONT>                throw new IOException("Destination '" + destFile + "' exists but is a directory");<a name="line.796"></a>
<FONT color="green">797</FONT>            }<a name="line.797"></a>
<FONT color="green">798</FONT>    <a name="line.798"></a>
<FONT color="green">799</FONT>            FileInputStream fis = null;<a name="line.799"></a>
<FONT color="green">800</FONT>            FileOutputStream fos = null;<a name="line.800"></a>
<FONT color="green">801</FONT>            FileChannel input = null;<a name="line.801"></a>
<FONT color="green">802</FONT>            FileChannel output = null;<a name="line.802"></a>
<FONT color="green">803</FONT>            try {<a name="line.803"></a>
<FONT color="green">804</FONT>                fis = new FileInputStream(srcFile);<a name="line.804"></a>
<FONT color="green">805</FONT>                fos = new FileOutputStream(destFile);<a name="line.805"></a>
<FONT color="green">806</FONT>                input  = fis.getChannel();<a name="line.806"></a>
<FONT color="green">807</FONT>                output = fos.getChannel();<a name="line.807"></a>
<FONT color="green">808</FONT>                long size = input.size();<a name="line.808"></a>
<FONT color="green">809</FONT>                long pos = 0;<a name="line.809"></a>
<FONT color="green">810</FONT>                long count = 0;<a name="line.810"></a>
<FONT color="green">811</FONT>                while (pos &lt; size) {<a name="line.811"></a>
<FONT color="green">812</FONT>                    count = (size - pos) &gt; FIFTY_MB ? FIFTY_MB : (size - pos);<a name="line.812"></a>
<FONT color="green">813</FONT>                    pos += output.transferFrom(input, pos, count);<a name="line.813"></a>
<FONT color="green">814</FONT>                }<a name="line.814"></a>
<FONT color="green">815</FONT>            } finally {<a name="line.815"></a>
<FONT color="green">816</FONT>                IOUtils.closeQuietly(output);<a name="line.816"></a>
<FONT color="green">817</FONT>                IOUtils.closeQuietly(fos);<a name="line.817"></a>
<FONT color="green">818</FONT>                IOUtils.closeQuietly(input);<a name="line.818"></a>
<FONT color="green">819</FONT>                IOUtils.closeQuietly(fis);<a name="line.819"></a>
<FONT color="green">820</FONT>            }<a name="line.820"></a>
<FONT color="green">821</FONT>    <a name="line.821"></a>
<FONT color="green">822</FONT>            if (srcFile.length() != destFile.length()) {<a name="line.822"></a>
<FONT color="green">823</FONT>                throw new IOException("Failed to copy full contents from '" +<a name="line.823"></a>
<FONT color="green">824</FONT>                        srcFile + "' to '" + destFile + "'");<a name="line.824"></a>
<FONT color="green">825</FONT>            }<a name="line.825"></a>
<FONT color="green">826</FONT>            if (preserveFileDate) {<a name="line.826"></a>
<FONT color="green">827</FONT>                destFile.setLastModified(srcFile.lastModified());<a name="line.827"></a>
<FONT color="green">828</FONT>            }<a name="line.828"></a>
<FONT color="green">829</FONT>        }<a name="line.829"></a>
<FONT color="green">830</FONT>    <a name="line.830"></a>
<FONT color="green">831</FONT>        //-----------------------------------------------------------------------<a name="line.831"></a>
<FONT color="green">832</FONT>        /**<a name="line.832"></a>
<FONT color="green">833</FONT>         * Copies a directory to within another directory preserving the file dates.<a name="line.833"></a>
<FONT color="green">834</FONT>         * &lt;p&gt;<a name="line.834"></a>
<FONT color="green">835</FONT>         * This method copies the source directory and all its contents to a<a name="line.835"></a>
<FONT color="green">836</FONT>         * directory of the same name in the specified destination directory.<a name="line.836"></a>
<FONT color="green">837</FONT>         * &lt;p&gt;<a name="line.837"></a>
<FONT color="green">838</FONT>         * The destination directory is created if it does not exist.<a name="line.838"></a>
<FONT color="green">839</FONT>         * If the destination directory did exist, then this method merges<a name="line.839"></a>
<FONT color="green">840</FONT>         * the source with the destination, with the source taking precedence.<a name="line.840"></a>
<FONT color="green">841</FONT>         * &lt;p&gt;<a name="line.841"></a>
<FONT color="green">842</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; This method tries to preserve the files' last<a name="line.842"></a>
<FONT color="green">843</FONT>         * modified date/times using {@link File#setLastModified(long)}, however<a name="line.843"></a>
<FONT color="green">844</FONT>         * it is not guaranteed that those operations will succeed.<a name="line.844"></a>
<FONT color="green">845</FONT>         * If the modification operation fails, no indication is provided.<a name="line.845"></a>
<FONT color="green">846</FONT>         *<a name="line.846"></a>
<FONT color="green">847</FONT>         * @param srcDir  an existing directory to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.847"></a>
<FONT color="green">848</FONT>         * @param destDir  the directory to place the copy in, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.848"></a>
<FONT color="green">849</FONT>         *<a name="line.849"></a>
<FONT color="green">850</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.850"></a>
<FONT color="green">851</FONT>         * @throws IOException if source or destination is invalid<a name="line.851"></a>
<FONT color="green">852</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.852"></a>
<FONT color="green">853</FONT>         * @since Commons IO 1.2<a name="line.853"></a>
<FONT color="green">854</FONT>         */<a name="line.854"></a>
<FONT color="green">855</FONT>        public static void copyDirectoryToDirectory(File srcDir, File destDir) throws IOException {<a name="line.855"></a>
<FONT color="green">856</FONT>            if (srcDir == null) {<a name="line.856"></a>
<FONT color="green">857</FONT>                throw new NullPointerException("Source must not be null");<a name="line.857"></a>
<FONT color="green">858</FONT>            }<a name="line.858"></a>
<FONT color="green">859</FONT>            if (srcDir.exists() &amp;&amp; srcDir.isDirectory() == false) {<a name="line.859"></a>
<FONT color="green">860</FONT>                throw new IllegalArgumentException("Source '" + destDir + "' is not a directory");<a name="line.860"></a>
<FONT color="green">861</FONT>            }<a name="line.861"></a>
<FONT color="green">862</FONT>            if (destDir == null) {<a name="line.862"></a>
<FONT color="green">863</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.863"></a>
<FONT color="green">864</FONT>            }<a name="line.864"></a>
<FONT color="green">865</FONT>            if (destDir.exists() &amp;&amp; destDir.isDirectory() == false) {<a name="line.865"></a>
<FONT color="green">866</FONT>                throw new IllegalArgumentException("Destination '" + destDir + "' is not a directory");<a name="line.866"></a>
<FONT color="green">867</FONT>            }<a name="line.867"></a>
<FONT color="green">868</FONT>            copyDirectory(srcDir, new File(destDir, srcDir.getName()), true);<a name="line.868"></a>
<FONT color="green">869</FONT>        }<a name="line.869"></a>
<FONT color="green">870</FONT>    <a name="line.870"></a>
<FONT color="green">871</FONT>        /**<a name="line.871"></a>
<FONT color="green">872</FONT>         * Copies a whole directory to a new location preserving the file dates.<a name="line.872"></a>
<FONT color="green">873</FONT>         * &lt;p&gt;<a name="line.873"></a>
<FONT color="green">874</FONT>         * This method copies the specified directory and all its child<a name="line.874"></a>
<FONT color="green">875</FONT>         * directories and files to the specified destination.<a name="line.875"></a>
<FONT color="green">876</FONT>         * The destination is the new location and name of the directory.<a name="line.876"></a>
<FONT color="green">877</FONT>         * &lt;p&gt;<a name="line.877"></a>
<FONT color="green">878</FONT>         * The destination directory is created if it does not exist.<a name="line.878"></a>
<FONT color="green">879</FONT>         * If the destination directory did exist, then this method merges<a name="line.879"></a>
<FONT color="green">880</FONT>         * the source with the destination, with the source taking precedence.<a name="line.880"></a>
<FONT color="green">881</FONT>         * &lt;p&gt;<a name="line.881"></a>
<FONT color="green">882</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; This method tries to preserve the files' last<a name="line.882"></a>
<FONT color="green">883</FONT>         * modified date/times using {@link File#setLastModified(long)}, however<a name="line.883"></a>
<FONT color="green">884</FONT>         * it is not guaranteed that those operations will succeed.<a name="line.884"></a>
<FONT color="green">885</FONT>         * If the modification operation fails, no indication is provided.<a name="line.885"></a>
<FONT color="green">886</FONT>         *<a name="line.886"></a>
<FONT color="green">887</FONT>         * @param srcDir  an existing directory to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.887"></a>
<FONT color="green">888</FONT>         * @param destDir  the new directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.888"></a>
<FONT color="green">889</FONT>         *<a name="line.889"></a>
<FONT color="green">890</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.890"></a>
<FONT color="green">891</FONT>         * @throws IOException if source or destination is invalid<a name="line.891"></a>
<FONT color="green">892</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.892"></a>
<FONT color="green">893</FONT>         * @since Commons IO 1.1<a name="line.893"></a>
<FONT color="green">894</FONT>         */<a name="line.894"></a>
<FONT color="green">895</FONT>        public static void copyDirectory(File srcDir, File destDir) throws IOException {<a name="line.895"></a>
<FONT color="green">896</FONT>            copyDirectory(srcDir, destDir, true);<a name="line.896"></a>
<FONT color="green">897</FONT>        }<a name="line.897"></a>
<FONT color="green">898</FONT>    <a name="line.898"></a>
<FONT color="green">899</FONT>        /**<a name="line.899"></a>
<FONT color="green">900</FONT>         * Copies a whole directory to a new location.<a name="line.900"></a>
<FONT color="green">901</FONT>         * &lt;p&gt;<a name="line.901"></a>
<FONT color="green">902</FONT>         * This method copies the contents of the specified source directory<a name="line.902"></a>
<FONT color="green">903</FONT>         * to within the specified destination directory.<a name="line.903"></a>
<FONT color="green">904</FONT>         * &lt;p&gt;<a name="line.904"></a>
<FONT color="green">905</FONT>         * The destination directory is created if it does not exist.<a name="line.905"></a>
<FONT color="green">906</FONT>         * If the destination directory did exist, then this method merges<a name="line.906"></a>
<FONT color="green">907</FONT>         * the source with the destination, with the source taking precedence.<a name="line.907"></a>
<FONT color="green">908</FONT>         * &lt;p&gt;<a name="line.908"></a>
<FONT color="green">909</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; Setting &lt;code&gt;preserveFileDate&lt;/code&gt; to<a name="line.909"></a>
<FONT color="green">910</FONT>         * &lt;code&gt;true&lt;/code&gt; tries to preserve the files' last modified<a name="line.910"></a>
<FONT color="green">911</FONT>         * date/times using {@link File#setLastModified(long)}, however it is<a name="line.911"></a>
<FONT color="green">912</FONT>         * not guaranteed that those operations will succeed.<a name="line.912"></a>
<FONT color="green">913</FONT>         * If the modification operation fails, no indication is provided.<a name="line.913"></a>
<FONT color="green">914</FONT>         *<a name="line.914"></a>
<FONT color="green">915</FONT>         * @param srcDir  an existing directory to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.915"></a>
<FONT color="green">916</FONT>         * @param destDir  the new directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.916"></a>
<FONT color="green">917</FONT>         * @param preserveFileDate  true if the file date of the copy<a name="line.917"></a>
<FONT color="green">918</FONT>         *  should be the same as the original<a name="line.918"></a>
<FONT color="green">919</FONT>         *<a name="line.919"></a>
<FONT color="green">920</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.920"></a>
<FONT color="green">921</FONT>         * @throws IOException if source or destination is invalid<a name="line.921"></a>
<FONT color="green">922</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.922"></a>
<FONT color="green">923</FONT>         * @since Commons IO 1.1<a name="line.923"></a>
<FONT color="green">924</FONT>         */<a name="line.924"></a>
<FONT color="green">925</FONT>        public static void copyDirectory(File srcDir, File destDir,<a name="line.925"></a>
<FONT color="green">926</FONT>                boolean preserveFileDate) throws IOException {<a name="line.926"></a>
<FONT color="green">927</FONT>            copyDirectory(srcDir, destDir, null, preserveFileDate);<a name="line.927"></a>
<FONT color="green">928</FONT>        }<a name="line.928"></a>
<FONT color="green">929</FONT>    <a name="line.929"></a>
<FONT color="green">930</FONT>        /**<a name="line.930"></a>
<FONT color="green">931</FONT>         * Copies a filtered directory to a new location preserving the file dates.<a name="line.931"></a>
<FONT color="green">932</FONT>         * &lt;p&gt;<a name="line.932"></a>
<FONT color="green">933</FONT>         * This method copies the contents of the specified source directory<a name="line.933"></a>
<FONT color="green">934</FONT>         * to within the specified destination directory.<a name="line.934"></a>
<FONT color="green">935</FONT>         * &lt;p&gt;<a name="line.935"></a>
<FONT color="green">936</FONT>         * The destination directory is created if it does not exist.<a name="line.936"></a>
<FONT color="green">937</FONT>         * If the destination directory did exist, then this method merges<a name="line.937"></a>
<FONT color="green">938</FONT>         * the source with the destination, with the source taking precedence.<a name="line.938"></a>
<FONT color="green">939</FONT>         * &lt;p&gt;<a name="line.939"></a>
<FONT color="green">940</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; This method tries to preserve the files' last<a name="line.940"></a>
<FONT color="green">941</FONT>         * modified date/times using {@link File#setLastModified(long)}, however<a name="line.941"></a>
<FONT color="green">942</FONT>         * it is not guaranteed that those operations will succeed.<a name="line.942"></a>
<FONT color="green">943</FONT>         * If the modification operation fails, no indication is provided.<a name="line.943"></a>
<FONT color="green">944</FONT>         *<a name="line.944"></a>
<FONT color="green">945</FONT>         * &lt;h4&gt;Example: Copy directories only&lt;/h4&gt; <a name="line.945"></a>
<FONT color="green">946</FONT>         *  &lt;pre&gt;<a name="line.946"></a>
<FONT color="green">947</FONT>         *  // only copy the directory structure<a name="line.947"></a>
<FONT color="green">948</FONT>         *  FileUtils.copyDirectory(srcDir, destDir, DirectoryFileFilter.DIRECTORY);<a name="line.948"></a>
<FONT color="green">949</FONT>         *  &lt;/pre&gt;<a name="line.949"></a>
<FONT color="green">950</FONT>         *<a name="line.950"></a>
<FONT color="green">951</FONT>         * &lt;h4&gt;Example: Copy directories and txt files&lt;/h4&gt;<a name="line.951"></a>
<FONT color="green">952</FONT>         *  &lt;pre&gt;<a name="line.952"></a>
<FONT color="green">953</FONT>         *  // Create a filter for ".txt" files<a name="line.953"></a>
<FONT color="green">954</FONT>         *  IOFileFilter txtSuffixFilter = FileFilterUtils.suffixFileFilter(".txt");<a name="line.954"></a>
<FONT color="green">955</FONT>         *  IOFileFilter txtFiles = FileFilterUtils.andFileFilter(FileFileFilter.FILE, txtSuffixFilter);<a name="line.955"></a>
<FONT color="green">956</FONT>         *<a name="line.956"></a>
<FONT color="green">957</FONT>         *  // Create a filter for either directories or ".txt" files<a name="line.957"></a>
<FONT color="green">958</FONT>         *  FileFilter filter = FileFilterUtils.orFileFilter(DirectoryFileFilter.DIRECTORY, txtFiles);<a name="line.958"></a>
<FONT color="green">959</FONT>         *<a name="line.959"></a>
<FONT color="green">960</FONT>         *  // Copy using the filter<a name="line.960"></a>
<FONT color="green">961</FONT>         *  FileUtils.copyDirectory(srcDir, destDir, filter);<a name="line.961"></a>
<FONT color="green">962</FONT>         *  &lt;/pre&gt;<a name="line.962"></a>
<FONT color="green">963</FONT>         *<a name="line.963"></a>
<FONT color="green">964</FONT>         * @param srcDir  an existing directory to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.964"></a>
<FONT color="green">965</FONT>         * @param destDir  the new directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.965"></a>
<FONT color="green">966</FONT>         * @param filter  the filter to apply, null means copy all directories and files<a name="line.966"></a>
<FONT color="green">967</FONT>         *  should be the same as the original<a name="line.967"></a>
<FONT color="green">968</FONT>         *<a name="line.968"></a>
<FONT color="green">969</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.969"></a>
<FONT color="green">970</FONT>         * @throws IOException if source or destination is invalid<a name="line.970"></a>
<FONT color="green">971</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.971"></a>
<FONT color="green">972</FONT>         * @since Commons IO 1.4<a name="line.972"></a>
<FONT color="green">973</FONT>         */<a name="line.973"></a>
<FONT color="green">974</FONT>        public static void copyDirectory(File srcDir, File destDir,<a name="line.974"></a>
<FONT color="green">975</FONT>                FileFilter filter) throws IOException {<a name="line.975"></a>
<FONT color="green">976</FONT>            copyDirectory(srcDir, destDir, filter, true);<a name="line.976"></a>
<FONT color="green">977</FONT>        }<a name="line.977"></a>
<FONT color="green">978</FONT>    <a name="line.978"></a>
<FONT color="green">979</FONT>        /**<a name="line.979"></a>
<FONT color="green">980</FONT>         * Copies a filtered directory to a new location.<a name="line.980"></a>
<FONT color="green">981</FONT>         * &lt;p&gt;<a name="line.981"></a>
<FONT color="green">982</FONT>         * This method copies the contents of the specified source directory<a name="line.982"></a>
<FONT color="green">983</FONT>         * to within the specified destination directory.<a name="line.983"></a>
<FONT color="green">984</FONT>         * &lt;p&gt;<a name="line.984"></a>
<FONT color="green">985</FONT>         * The destination directory is created if it does not exist.<a name="line.985"></a>
<FONT color="green">986</FONT>         * If the destination directory did exist, then this method merges<a name="line.986"></a>
<FONT color="green">987</FONT>         * the source with the destination, with the source taking precedence.<a name="line.987"></a>
<FONT color="green">988</FONT>         * &lt;p&gt;<a name="line.988"></a>
<FONT color="green">989</FONT>         * &lt;strong&gt;Note:&lt;/strong&gt; Setting &lt;code&gt;preserveFileDate&lt;/code&gt; to<a name="line.989"></a>
<FONT color="green">990</FONT>         * &lt;code&gt;true&lt;/code&gt; tries to preserve the files' last modified<a name="line.990"></a>
<FONT color="green">991</FONT>         * date/times using {@link File#setLastModified(long)}, however it is<a name="line.991"></a>
<FONT color="green">992</FONT>         * not guaranteed that those operations will succeed.<a name="line.992"></a>
<FONT color="green">993</FONT>         * If the modification operation fails, no indication is provided.<a name="line.993"></a>
<FONT color="green">994</FONT>         *<a name="line.994"></a>
<FONT color="green">995</FONT>         * &lt;h4&gt;Example: Copy directories only&lt;/h4&gt; <a name="line.995"></a>
<FONT color="green">996</FONT>         *  &lt;pre&gt;<a name="line.996"></a>
<FONT color="green">997</FONT>         *  // only copy the directory structure<a name="line.997"></a>
<FONT color="green">998</FONT>         *  FileUtils.copyDirectory(srcDir, destDir, DirectoryFileFilter.DIRECTORY, false);<a name="line.998"></a>
<FONT color="green">999</FONT>         *  &lt;/pre&gt;<a name="line.999"></a>
<FONT color="green">1000</FONT>         *<a name="line.1000"></a>
<FONT color="green">1001</FONT>         * &lt;h4&gt;Example: Copy directories and txt files&lt;/h4&gt;<a name="line.1001"></a>
<FONT color="green">1002</FONT>         *  &lt;pre&gt;<a name="line.1002"></a>
<FONT color="green">1003</FONT>         *  // Create a filter for ".txt" files<a name="line.1003"></a>
<FONT color="green">1004</FONT>         *  IOFileFilter txtSuffixFilter = FileFilterUtils.suffixFileFilter(".txt");<a name="line.1004"></a>
<FONT color="green">1005</FONT>         *  IOFileFilter txtFiles = FileFilterUtils.andFileFilter(FileFileFilter.FILE, txtSuffixFilter);<a name="line.1005"></a>
<FONT color="green">1006</FONT>         *<a name="line.1006"></a>
<FONT color="green">1007</FONT>         *  // Create a filter for either directories or ".txt" files<a name="line.1007"></a>
<FONT color="green">1008</FONT>         *  FileFilter filter = FileFilterUtils.orFileFilter(DirectoryFileFilter.DIRECTORY, txtFiles);<a name="line.1008"></a>
<FONT color="green">1009</FONT>         *<a name="line.1009"></a>
<FONT color="green">1010</FONT>         *  // Copy using the filter<a name="line.1010"></a>
<FONT color="green">1011</FONT>         *  FileUtils.copyDirectory(srcDir, destDir, filter, false);<a name="line.1011"></a>
<FONT color="green">1012</FONT>         *  &lt;/pre&gt;<a name="line.1012"></a>
<FONT color="green">1013</FONT>         * <a name="line.1013"></a>
<FONT color="green">1014</FONT>         * @param srcDir  an existing directory to copy, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1014"></a>
<FONT color="green">1015</FONT>         * @param destDir  the new directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1015"></a>
<FONT color="green">1016</FONT>         * @param filter  the filter to apply, null means copy all directories and files<a name="line.1016"></a>
<FONT color="green">1017</FONT>         * @param preserveFileDate  true if the file date of the copy<a name="line.1017"></a>
<FONT color="green">1018</FONT>         *  should be the same as the original<a name="line.1018"></a>
<FONT color="green">1019</FONT>         *<a name="line.1019"></a>
<FONT color="green">1020</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.1020"></a>
<FONT color="green">1021</FONT>         * @throws IOException if source or destination is invalid<a name="line.1021"></a>
<FONT color="green">1022</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.1022"></a>
<FONT color="green">1023</FONT>         * @since Commons IO 1.4<a name="line.1023"></a>
<FONT color="green">1024</FONT>         */<a name="line.1024"></a>
<FONT color="green">1025</FONT>        public static void copyDirectory(File srcDir, File destDir,<a name="line.1025"></a>
<FONT color="green">1026</FONT>                FileFilter filter, boolean preserveFileDate) throws IOException {<a name="line.1026"></a>
<FONT color="green">1027</FONT>            if (srcDir == null) {<a name="line.1027"></a>
<FONT color="green">1028</FONT>                throw new NullPointerException("Source must not be null");<a name="line.1028"></a>
<FONT color="green">1029</FONT>            }<a name="line.1029"></a>
<FONT color="green">1030</FONT>            if (destDir == null) {<a name="line.1030"></a>
<FONT color="green">1031</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.1031"></a>
<FONT color="green">1032</FONT>            }<a name="line.1032"></a>
<FONT color="green">1033</FONT>            if (srcDir.exists() == false) {<a name="line.1033"></a>
<FONT color="green">1034</FONT>                throw new FileNotFoundException("Source '" + srcDir + "' does not exist");<a name="line.1034"></a>
<FONT color="green">1035</FONT>            }<a name="line.1035"></a>
<FONT color="green">1036</FONT>            if (srcDir.isDirectory() == false) {<a name="line.1036"></a>
<FONT color="green">1037</FONT>                throw new IOException("Source '" + srcDir + "' exists but is not a directory");<a name="line.1037"></a>
<FONT color="green">1038</FONT>            }<a name="line.1038"></a>
<FONT color="green">1039</FONT>            if (srcDir.getCanonicalPath().equals(destDir.getCanonicalPath())) {<a name="line.1039"></a>
<FONT color="green">1040</FONT>                throw new IOException("Source '" + srcDir + "' and destination '" + destDir + "' are the same");<a name="line.1040"></a>
<FONT color="green">1041</FONT>            }<a name="line.1041"></a>
<FONT color="green">1042</FONT>    <a name="line.1042"></a>
<FONT color="green">1043</FONT>            // Cater for destination being directory within the source directory (see IO-141)<a name="line.1043"></a>
<FONT color="green">1044</FONT>            List&lt;String&gt; exclusionList = null;<a name="line.1044"></a>
<FONT color="green">1045</FONT>            if (destDir.getCanonicalPath().startsWith(srcDir.getCanonicalPath())) {<a name="line.1045"></a>
<FONT color="green">1046</FONT>                File[] srcFiles = filter == null ? srcDir.listFiles() : srcDir.listFiles(filter);<a name="line.1046"></a>
<FONT color="green">1047</FONT>                if (srcFiles != null &amp;&amp; srcFiles.length &gt; 0) {<a name="line.1047"></a>
<FONT color="green">1048</FONT>                    exclusionList = new ArrayList&lt;String&gt;(srcFiles.length);<a name="line.1048"></a>
<FONT color="green">1049</FONT>                    for (File srcFile : srcFiles) {<a name="line.1049"></a>
<FONT color="green">1050</FONT>                        File copiedFile = new File(destDir, srcFile.getName());<a name="line.1050"></a>
<FONT color="green">1051</FONT>                        exclusionList.add(copiedFile.getCanonicalPath());<a name="line.1051"></a>
<FONT color="green">1052</FONT>                    }<a name="line.1052"></a>
<FONT color="green">1053</FONT>                }<a name="line.1053"></a>
<FONT color="green">1054</FONT>            }<a name="line.1054"></a>
<FONT color="green">1055</FONT>            doCopyDirectory(srcDir, destDir, filter, preserveFileDate, exclusionList);<a name="line.1055"></a>
<FONT color="green">1056</FONT>        }<a name="line.1056"></a>
<FONT color="green">1057</FONT>    <a name="line.1057"></a>
<FONT color="green">1058</FONT>        /**<a name="line.1058"></a>
<FONT color="green">1059</FONT>         * Internal copy directory method.<a name="line.1059"></a>
<FONT color="green">1060</FONT>         * <a name="line.1060"></a>
<FONT color="green">1061</FONT>         * @param srcDir  the validated source directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1061"></a>
<FONT color="green">1062</FONT>         * @param destDir  the validated destination directory, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1062"></a>
<FONT color="green">1063</FONT>         * @param filter  the filter to apply, null means copy all directories and files<a name="line.1063"></a>
<FONT color="green">1064</FONT>         * @param preserveFileDate  whether to preserve the file date<a name="line.1064"></a>
<FONT color="green">1065</FONT>         * @param exclusionList  List of files and directories to exclude from the copy, may be null<a name="line.1065"></a>
<FONT color="green">1066</FONT>         * @throws IOException if an error occurs<a name="line.1066"></a>
<FONT color="green">1067</FONT>         * @since Commons IO 1.1<a name="line.1067"></a>
<FONT color="green">1068</FONT>         */<a name="line.1068"></a>
<FONT color="green">1069</FONT>        private static void doCopyDirectory(File srcDir, File destDir, FileFilter filter,<a name="line.1069"></a>
<FONT color="green">1070</FONT>                boolean preserveFileDate, List&lt;String&gt; exclusionList) throws IOException {<a name="line.1070"></a>
<FONT color="green">1071</FONT>            // recurse<a name="line.1071"></a>
<FONT color="green">1072</FONT>            File[] files = filter == null ? srcDir.listFiles() : srcDir.listFiles(filter);<a name="line.1072"></a>
<FONT color="green">1073</FONT>            if (files == null) {  // null if security restricted<a name="line.1073"></a>
<FONT color="green">1074</FONT>                throw new IOException("Failed to list contents of " + srcDir);<a name="line.1074"></a>
<FONT color="green">1075</FONT>            }<a name="line.1075"></a>
<FONT color="green">1076</FONT>            if (destDir.exists()) {<a name="line.1076"></a>
<FONT color="green">1077</FONT>                if (destDir.isDirectory() == false) {<a name="line.1077"></a>
<FONT color="green">1078</FONT>                    throw new IOException("Destination '" + destDir + "' exists but is not a directory");<a name="line.1078"></a>
<FONT color="green">1079</FONT>                }<a name="line.1079"></a>
<FONT color="green">1080</FONT>            } else {<a name="line.1080"></a>
<FONT color="green">1081</FONT>                if (destDir.mkdirs() == false) {<a name="line.1081"></a>
<FONT color="green">1082</FONT>                    throw new IOException("Destination '" + destDir + "' directory cannot be created");<a name="line.1082"></a>
<FONT color="green">1083</FONT>                }<a name="line.1083"></a>
<FONT color="green">1084</FONT>            }<a name="line.1084"></a>
<FONT color="green">1085</FONT>            if (destDir.canWrite() == false) {<a name="line.1085"></a>
<FONT color="green">1086</FONT>                throw new IOException("Destination '" + destDir + "' cannot be written to");<a name="line.1086"></a>
<FONT color="green">1087</FONT>            }<a name="line.1087"></a>
<FONT color="green">1088</FONT>            for (File file : files) {<a name="line.1088"></a>
<FONT color="green">1089</FONT>                File copiedFile = new File(destDir, file.getName());<a name="line.1089"></a>
<FONT color="green">1090</FONT>                if (exclusionList == null || !exclusionList.contains(file.getCanonicalPath())) {<a name="line.1090"></a>
<FONT color="green">1091</FONT>                    if (file.isDirectory()) {<a name="line.1091"></a>
<FONT color="green">1092</FONT>                        doCopyDirectory(file, copiedFile, filter, preserveFileDate, exclusionList);<a name="line.1092"></a>
<FONT color="green">1093</FONT>                    } else {<a name="line.1093"></a>
<FONT color="green">1094</FONT>                        doCopyFile(file, copiedFile, preserveFileDate);<a name="line.1094"></a>
<FONT color="green">1095</FONT>                    }<a name="line.1095"></a>
<FONT color="green">1096</FONT>                }<a name="line.1096"></a>
<FONT color="green">1097</FONT>            }<a name="line.1097"></a>
<FONT color="green">1098</FONT>    <a name="line.1098"></a>
<FONT color="green">1099</FONT>            // Do this last, as the above has probably affected directory metadata<a name="line.1099"></a>
<FONT color="green">1100</FONT>            if (preserveFileDate) {<a name="line.1100"></a>
<FONT color="green">1101</FONT>                destDir.setLastModified(srcDir.lastModified());<a name="line.1101"></a>
<FONT color="green">1102</FONT>            }<a name="line.1102"></a>
<FONT color="green">1103</FONT>        }<a name="line.1103"></a>
<FONT color="green">1104</FONT>    <a name="line.1104"></a>
<FONT color="green">1105</FONT>        //-----------------------------------------------------------------------<a name="line.1105"></a>
<FONT color="green">1106</FONT>        /**<a name="line.1106"></a>
<FONT color="green">1107</FONT>         * Copies bytes from the URL &lt;code&gt;source&lt;/code&gt; to a file<a name="line.1107"></a>
<FONT color="green">1108</FONT>         * &lt;code&gt;destination&lt;/code&gt;. The directories up to &lt;code&gt;destination&lt;/code&gt;<a name="line.1108"></a>
<FONT color="green">1109</FONT>         * will be created if they don't already exist. &lt;code&gt;destination&lt;/code&gt;<a name="line.1109"></a>
<FONT color="green">1110</FONT>         * will be overwritten if it already exists.<a name="line.1110"></a>
<FONT color="green">1111</FONT>         * &lt;p&gt;<a name="line.1111"></a>
<FONT color="green">1112</FONT>         * Warning: this method does not set a connection or read timeout and thus<a name="line.1112"></a>
<FONT color="green">1113</FONT>         * might block forever. Use {@link #copyURLToFile(URL, File, int, int)}<a name="line.1113"></a>
<FONT color="green">1114</FONT>         * with reasonable timeouts to prevent this.<a name="line.1114"></a>
<FONT color="green">1115</FONT>         *<a name="line.1115"></a>
<FONT color="green">1116</FONT>         * @param source  the &lt;code&gt;URL&lt;/code&gt; to copy bytes from, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1116"></a>
<FONT color="green">1117</FONT>         * @param destination  the non-directory &lt;code&gt;File&lt;/code&gt; to write bytes to<a name="line.1117"></a>
<FONT color="green">1118</FONT>         *  (possibly overwriting), must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1118"></a>
<FONT color="green">1119</FONT>         * @throws IOException if &lt;code&gt;source&lt;/code&gt; URL cannot be opened<a name="line.1119"></a>
<FONT color="green">1120</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; is a directory<a name="line.1120"></a>
<FONT color="green">1121</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; cannot be written<a name="line.1121"></a>
<FONT color="green">1122</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; needs creating but can't be<a name="line.1122"></a>
<FONT color="green">1123</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.1123"></a>
<FONT color="green">1124</FONT>         */<a name="line.1124"></a>
<FONT color="green">1125</FONT>        public static void copyURLToFile(URL source, File destination) throws IOException {<a name="line.1125"></a>
<FONT color="green">1126</FONT>            InputStream input = source.openStream();<a name="line.1126"></a>
<FONT color="green">1127</FONT>            copyInputStreamToFile(input, destination);<a name="line.1127"></a>
<FONT color="green">1128</FONT>        }<a name="line.1128"></a>
<FONT color="green">1129</FONT>    <a name="line.1129"></a>
<FONT color="green">1130</FONT>        /**<a name="line.1130"></a>
<FONT color="green">1131</FONT>         * Copies bytes from the URL &lt;code&gt;source&lt;/code&gt; to a file<a name="line.1131"></a>
<FONT color="green">1132</FONT>         * &lt;code&gt;destination&lt;/code&gt;. The directories up to &lt;code&gt;destination&lt;/code&gt;<a name="line.1132"></a>
<FONT color="green">1133</FONT>         * will be created if they don't already exist. &lt;code&gt;destination&lt;/code&gt;<a name="line.1133"></a>
<FONT color="green">1134</FONT>         * will be overwritten if it already exists.<a name="line.1134"></a>
<FONT color="green">1135</FONT>         *<a name="line.1135"></a>
<FONT color="green">1136</FONT>         * @param source  the &lt;code&gt;URL&lt;/code&gt; to copy bytes from, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1136"></a>
<FONT color="green">1137</FONT>         * @param destination  the non-directory &lt;code&gt;File&lt;/code&gt; to write bytes to<a name="line.1137"></a>
<FONT color="green">1138</FONT>         *  (possibly overwriting), must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1138"></a>
<FONT color="green">1139</FONT>         * @param connectionTimeout the number of milliseconds until this method<a name="line.1139"></a>
<FONT color="green">1140</FONT>         *  will timeout if no connection could be established to the &lt;code&gt;source&lt;/code&gt;<a name="line.1140"></a>
<FONT color="green">1141</FONT>         * @param readTimeout the number of milliseconds until this method will<a name="line.1141"></a>
<FONT color="green">1142</FONT>         *  timeout if no data could be read from the &lt;code&gt;source&lt;/code&gt; <a name="line.1142"></a>
<FONT color="green">1143</FONT>         * @throws IOException if &lt;code&gt;source&lt;/code&gt; URL cannot be opened<a name="line.1143"></a>
<FONT color="green">1144</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; is a directory<a name="line.1144"></a>
<FONT color="green">1145</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; cannot be written<a name="line.1145"></a>
<FONT color="green">1146</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; needs creating but can't be<a name="line.1146"></a>
<FONT color="green">1147</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.1147"></a>
<FONT color="green">1148</FONT>         * @since Commons IO 2.0<a name="line.1148"></a>
<FONT color="green">1149</FONT>         */<a name="line.1149"></a>
<FONT color="green">1150</FONT>        public static void copyURLToFile(URL source, File destination,<a name="line.1150"></a>
<FONT color="green">1151</FONT>                int connectionTimeout, int readTimeout) throws IOException {<a name="line.1151"></a>
<FONT color="green">1152</FONT>            URLConnection connection = source.openConnection();<a name="line.1152"></a>
<FONT color="green">1153</FONT>            connection.setConnectTimeout(connectionTimeout);<a name="line.1153"></a>
<FONT color="green">1154</FONT>            connection.setReadTimeout(readTimeout);<a name="line.1154"></a>
<FONT color="green">1155</FONT>            InputStream input = connection.getInputStream();<a name="line.1155"></a>
<FONT color="green">1156</FONT>            copyInputStreamToFile(input, destination);<a name="line.1156"></a>
<FONT color="green">1157</FONT>        }<a name="line.1157"></a>
<FONT color="green">1158</FONT>    <a name="line.1158"></a>
<FONT color="green">1159</FONT>        /**<a name="line.1159"></a>
<FONT color="green">1160</FONT>         * Copies bytes from an {@link InputStream} &lt;code&gt;source&lt;/code&gt; to a file<a name="line.1160"></a>
<FONT color="green">1161</FONT>         * &lt;code&gt;destination&lt;/code&gt;. The directories up to &lt;code&gt;destination&lt;/code&gt;<a name="line.1161"></a>
<FONT color="green">1162</FONT>         * will be created if they don't already exist. &lt;code&gt;destination&lt;/code&gt;<a name="line.1162"></a>
<FONT color="green">1163</FONT>         * will be overwritten if it already exists.<a name="line.1163"></a>
<FONT color="green">1164</FONT>         *<a name="line.1164"></a>
<FONT color="green">1165</FONT>         * @param source  the &lt;code&gt;InputStream&lt;/code&gt; to copy bytes from, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1165"></a>
<FONT color="green">1166</FONT>         * @param destination  the non-directory &lt;code&gt;File&lt;/code&gt; to write bytes to<a name="line.1166"></a>
<FONT color="green">1167</FONT>         *  (possibly overwriting), must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1167"></a>
<FONT color="green">1168</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; is a directory<a name="line.1168"></a>
<FONT color="green">1169</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; cannot be written<a name="line.1169"></a>
<FONT color="green">1170</FONT>         * @throws IOException if &lt;code&gt;destination&lt;/code&gt; needs creating but can't be<a name="line.1170"></a>
<FONT color="green">1171</FONT>         * @throws IOException if an IO error occurs during copying<a name="line.1171"></a>
<FONT color="green">1172</FONT>         * @since Commons IO 2.0<a name="line.1172"></a>
<FONT color="green">1173</FONT>         */<a name="line.1173"></a>
<FONT color="green">1174</FONT>        public static void copyInputStreamToFile(InputStream source, File destination) throws IOException {<a name="line.1174"></a>
<FONT color="green">1175</FONT>            try {<a name="line.1175"></a>
<FONT color="green">1176</FONT>                FileOutputStream output = openOutputStream(destination);<a name="line.1176"></a>
<FONT color="green">1177</FONT>                try {<a name="line.1177"></a>
<FONT color="green">1178</FONT>                    IOUtils.copy(source, output);<a name="line.1178"></a>
<FONT color="green">1179</FONT>                } finally {<a name="line.1179"></a>
<FONT color="green">1180</FONT>                    IOUtils.closeQuietly(output);<a name="line.1180"></a>
<FONT color="green">1181</FONT>                }<a name="line.1181"></a>
<FONT color="green">1182</FONT>            } finally {<a name="line.1182"></a>
<FONT color="green">1183</FONT>                IOUtils.closeQuietly(source);<a name="line.1183"></a>
<FONT color="green">1184</FONT>            }<a name="line.1184"></a>
<FONT color="green">1185</FONT>        }<a name="line.1185"></a>
<FONT color="green">1186</FONT>    <a name="line.1186"></a>
<FONT color="green">1187</FONT>        //-----------------------------------------------------------------------<a name="line.1187"></a>
<FONT color="green">1188</FONT>        /**<a name="line.1188"></a>
<FONT color="green">1189</FONT>         * Deletes a directory recursively. <a name="line.1189"></a>
<FONT color="green">1190</FONT>         *<a name="line.1190"></a>
<FONT color="green">1191</FONT>         * @param directory  directory to delete<a name="line.1191"></a>
<FONT color="green">1192</FONT>         * @throws IOException in case deletion is unsuccessful<a name="line.1192"></a>
<FONT color="green">1193</FONT>         */<a name="line.1193"></a>
<FONT color="green">1194</FONT>        public static void deleteDirectory(File directory) throws IOException {<a name="line.1194"></a>
<FONT color="green">1195</FONT>            if (!directory.exists()) {<a name="line.1195"></a>
<FONT color="green">1196</FONT>                return;<a name="line.1196"></a>
<FONT color="green">1197</FONT>            }<a name="line.1197"></a>
<FONT color="green">1198</FONT>    <a name="line.1198"></a>
<FONT color="green">1199</FONT>            if (!isSymlink(directory)) {<a name="line.1199"></a>
<FONT color="green">1200</FONT>                cleanDirectory(directory);<a name="line.1200"></a>
<FONT color="green">1201</FONT>            }<a name="line.1201"></a>
<FONT color="green">1202</FONT>    <a name="line.1202"></a>
<FONT color="green">1203</FONT>            if (!directory.delete()) {<a name="line.1203"></a>
<FONT color="green">1204</FONT>                String message =<a name="line.1204"></a>
<FONT color="green">1205</FONT>                    "Unable to delete directory " + directory + ".";<a name="line.1205"></a>
<FONT color="green">1206</FONT>                throw new IOException(message);<a name="line.1206"></a>
<FONT color="green">1207</FONT>            }<a name="line.1207"></a>
<FONT color="green">1208</FONT>        }<a name="line.1208"></a>
<FONT color="green">1209</FONT>    <a name="line.1209"></a>
<FONT color="green">1210</FONT>        /**<a name="line.1210"></a>
<FONT color="green">1211</FONT>         * Deletes a file, never throwing an exception. If file is a directory, delete it and all sub-directories.<a name="line.1211"></a>
<FONT color="green">1212</FONT>         * &lt;p&gt;<a name="line.1212"></a>
<FONT color="green">1213</FONT>         * The difference between File.delete() and this method are:<a name="line.1213"></a>
<FONT color="green">1214</FONT>         * &lt;ul&gt;<a name="line.1214"></a>
<FONT color="green">1215</FONT>         * &lt;li&gt;A directory to be deleted does not have to be empty.&lt;/li&gt;<a name="line.1215"></a>
<FONT color="green">1216</FONT>         * &lt;li&gt;No exceptions are thrown when a file or directory cannot be deleted.&lt;/li&gt;<a name="line.1216"></a>
<FONT color="green">1217</FONT>         * &lt;/ul&gt;<a name="line.1217"></a>
<FONT color="green">1218</FONT>         *<a name="line.1218"></a>
<FONT color="green">1219</FONT>         * @param file  file or directory to delete, can be &lt;code&gt;null&lt;/code&gt;<a name="line.1219"></a>
<FONT color="green">1220</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the file or directory was deleted, otherwise<a name="line.1220"></a>
<FONT color="green">1221</FONT>         * &lt;code&gt;false&lt;/code&gt;<a name="line.1221"></a>
<FONT color="green">1222</FONT>         *<a name="line.1222"></a>
<FONT color="green">1223</FONT>         * @since Commons IO 1.4<a name="line.1223"></a>
<FONT color="green">1224</FONT>         */<a name="line.1224"></a>
<FONT color="green">1225</FONT>        public static boolean deleteQuietly(File file) {<a name="line.1225"></a>
<FONT color="green">1226</FONT>            if (file == null) {<a name="line.1226"></a>
<FONT color="green">1227</FONT>                return false;<a name="line.1227"></a>
<FONT color="green">1228</FONT>            }<a name="line.1228"></a>
<FONT color="green">1229</FONT>            try {<a name="line.1229"></a>
<FONT color="green">1230</FONT>                if (file.isDirectory()) {<a name="line.1230"></a>
<FONT color="green">1231</FONT>                    cleanDirectory(file);<a name="line.1231"></a>
<FONT color="green">1232</FONT>                }<a name="line.1232"></a>
<FONT color="green">1233</FONT>            } catch (Exception ignored) {<a name="line.1233"></a>
<FONT color="green">1234</FONT>            }<a name="line.1234"></a>
<FONT color="green">1235</FONT>    <a name="line.1235"></a>
<FONT color="green">1236</FONT>            try {<a name="line.1236"></a>
<FONT color="green">1237</FONT>                return file.delete();<a name="line.1237"></a>
<FONT color="green">1238</FONT>            } catch (Exception ignored) {<a name="line.1238"></a>
<FONT color="green">1239</FONT>                return false;<a name="line.1239"></a>
<FONT color="green">1240</FONT>            }<a name="line.1240"></a>
<FONT color="green">1241</FONT>        }<a name="line.1241"></a>
<FONT color="green">1242</FONT>    <a name="line.1242"></a>
<FONT color="green">1243</FONT>        /**<a name="line.1243"></a>
<FONT color="green">1244</FONT>         * Cleans a directory without deleting it.<a name="line.1244"></a>
<FONT color="green">1245</FONT>         *<a name="line.1245"></a>
<FONT color="green">1246</FONT>         * @param directory directory to clean<a name="line.1246"></a>
<FONT color="green">1247</FONT>         * @throws IOException in case cleaning is unsuccessful<a name="line.1247"></a>
<FONT color="green">1248</FONT>         */<a name="line.1248"></a>
<FONT color="green">1249</FONT>        public static void cleanDirectory(File directory) throws IOException {<a name="line.1249"></a>
<FONT color="green">1250</FONT>            if (!directory.exists()) {<a name="line.1250"></a>
<FONT color="green">1251</FONT>                String message = directory + " does not exist";<a name="line.1251"></a>
<FONT color="green">1252</FONT>                throw new IllegalArgumentException(message);<a name="line.1252"></a>
<FONT color="green">1253</FONT>            }<a name="line.1253"></a>
<FONT color="green">1254</FONT>    <a name="line.1254"></a>
<FONT color="green">1255</FONT>            if (!directory.isDirectory()) {<a name="line.1255"></a>
<FONT color="green">1256</FONT>                String message = directory + " is not a directory";<a name="line.1256"></a>
<FONT color="green">1257</FONT>                throw new IllegalArgumentException(message);<a name="line.1257"></a>
<FONT color="green">1258</FONT>            }<a name="line.1258"></a>
<FONT color="green">1259</FONT>    <a name="line.1259"></a>
<FONT color="green">1260</FONT>            File[] files = directory.listFiles();<a name="line.1260"></a>
<FONT color="green">1261</FONT>            if (files == null) {  // null if security restricted<a name="line.1261"></a>
<FONT color="green">1262</FONT>                throw new IOException("Failed to list contents of " + directory);<a name="line.1262"></a>
<FONT color="green">1263</FONT>            }<a name="line.1263"></a>
<FONT color="green">1264</FONT>    <a name="line.1264"></a>
<FONT color="green">1265</FONT>            IOException exception = null;<a name="line.1265"></a>
<FONT color="green">1266</FONT>            for (File file : files) {<a name="line.1266"></a>
<FONT color="green">1267</FONT>                try {<a name="line.1267"></a>
<FONT color="green">1268</FONT>                    forceDelete(file);<a name="line.1268"></a>
<FONT color="green">1269</FONT>                } catch (IOException ioe) {<a name="line.1269"></a>
<FONT color="green">1270</FONT>                    exception = ioe;<a name="line.1270"></a>
<FONT color="green">1271</FONT>                }<a name="line.1271"></a>
<FONT color="green">1272</FONT>            }<a name="line.1272"></a>
<FONT color="green">1273</FONT>    <a name="line.1273"></a>
<FONT color="green">1274</FONT>            if (null != exception) {<a name="line.1274"></a>
<FONT color="green">1275</FONT>                throw exception;<a name="line.1275"></a>
<FONT color="green">1276</FONT>            }<a name="line.1276"></a>
<FONT color="green">1277</FONT>        }<a name="line.1277"></a>
<FONT color="green">1278</FONT>    <a name="line.1278"></a>
<FONT color="green">1279</FONT>        //-----------------------------------------------------------------------<a name="line.1279"></a>
<FONT color="green">1280</FONT>        /**<a name="line.1280"></a>
<FONT color="green">1281</FONT>         * Waits for NFS to propagate a file creation, imposing a timeout.<a name="line.1281"></a>
<FONT color="green">1282</FONT>         * &lt;p&gt;<a name="line.1282"></a>
<FONT color="green">1283</FONT>         * This method repeatedly tests {@link File#exists()} until it returns<a name="line.1283"></a>
<FONT color="green">1284</FONT>         * true up to the maximum time specified in seconds.<a name="line.1284"></a>
<FONT color="green">1285</FONT>         *<a name="line.1285"></a>
<FONT color="green">1286</FONT>         * @param file  the file to check, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1286"></a>
<FONT color="green">1287</FONT>         * @param seconds  the maximum time in seconds to wait<a name="line.1287"></a>
<FONT color="green">1288</FONT>         * @return true if file exists<a name="line.1288"></a>
<FONT color="green">1289</FONT>         * @throws NullPointerException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1289"></a>
<FONT color="green">1290</FONT>         */<a name="line.1290"></a>
<FONT color="green">1291</FONT>        public static boolean waitFor(File file, int seconds) {<a name="line.1291"></a>
<FONT color="green">1292</FONT>            int timeout = 0;<a name="line.1292"></a>
<FONT color="green">1293</FONT>            int tick = 0;<a name="line.1293"></a>
<FONT color="green">1294</FONT>            while (!file.exists()) {<a name="line.1294"></a>
<FONT color="green">1295</FONT>                if (tick++ &gt;= 10) {<a name="line.1295"></a>
<FONT color="green">1296</FONT>                    tick = 0;<a name="line.1296"></a>
<FONT color="green">1297</FONT>                    if (timeout++ &gt; seconds) {<a name="line.1297"></a>
<FONT color="green">1298</FONT>                        return false;<a name="line.1298"></a>
<FONT color="green">1299</FONT>                    }<a name="line.1299"></a>
<FONT color="green">1300</FONT>                }<a name="line.1300"></a>
<FONT color="green">1301</FONT>                try {<a name="line.1301"></a>
<FONT color="green">1302</FONT>                    Thread.sleep(100);<a name="line.1302"></a>
<FONT color="green">1303</FONT>                } catch (InterruptedException ignore) {<a name="line.1303"></a>
<FONT color="green">1304</FONT>                    // ignore exception<a name="line.1304"></a>
<FONT color="green">1305</FONT>                } catch (Exception ex) {<a name="line.1305"></a>
<FONT color="green">1306</FONT>                    break;<a name="line.1306"></a>
<FONT color="green">1307</FONT>                }<a name="line.1307"></a>
<FONT color="green">1308</FONT>            }<a name="line.1308"></a>
<FONT color="green">1309</FONT>            return true;<a name="line.1309"></a>
<FONT color="green">1310</FONT>        }<a name="line.1310"></a>
<FONT color="green">1311</FONT>    <a name="line.1311"></a>
<FONT color="green">1312</FONT>        //-----------------------------------------------------------------------<a name="line.1312"></a>
<FONT color="green">1313</FONT>        /**<a name="line.1313"></a>
<FONT color="green">1314</FONT>         * Reads the contents of a file into a String.<a name="line.1314"></a>
<FONT color="green">1315</FONT>         * The file is always closed.<a name="line.1315"></a>
<FONT color="green">1316</FONT>         *<a name="line.1316"></a>
<FONT color="green">1317</FONT>         * @param file  the file to read, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1317"></a>
<FONT color="green">1318</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1318"></a>
<FONT color="green">1319</FONT>         * @return the file contents, never &lt;code&gt;null&lt;/code&gt;<a name="line.1319"></a>
<FONT color="green">1320</FONT>         * @throws IOException in case of an I/O error<a name="line.1320"></a>
<FONT color="green">1321</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1321"></a>
<FONT color="green">1322</FONT>         */<a name="line.1322"></a>
<FONT color="green">1323</FONT>        public static String readFileToString(File file, String encoding) throws IOException {<a name="line.1323"></a>
<FONT color="green">1324</FONT>            InputStream in = null;<a name="line.1324"></a>
<FONT color="green">1325</FONT>            try {<a name="line.1325"></a>
<FONT color="green">1326</FONT>                in = openInputStream(file);<a name="line.1326"></a>
<FONT color="green">1327</FONT>                return IOUtils.toString(in, encoding);<a name="line.1327"></a>
<FONT color="green">1328</FONT>            } finally {<a name="line.1328"></a>
<FONT color="green">1329</FONT>                IOUtils.closeQuietly(in);<a name="line.1329"></a>
<FONT color="green">1330</FONT>            }<a name="line.1330"></a>
<FONT color="green">1331</FONT>        }<a name="line.1331"></a>
<FONT color="green">1332</FONT>    <a name="line.1332"></a>
<FONT color="green">1333</FONT>    <a name="line.1333"></a>
<FONT color="green">1334</FONT>        /**<a name="line.1334"></a>
<FONT color="green">1335</FONT>         * Reads the contents of a file into a String using the default encoding for the VM. <a name="line.1335"></a>
<FONT color="green">1336</FONT>         * The file is always closed.<a name="line.1336"></a>
<FONT color="green">1337</FONT>         *<a name="line.1337"></a>
<FONT color="green">1338</FONT>         * @param file  the file to read, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1338"></a>
<FONT color="green">1339</FONT>         * @return the file contents, never &lt;code&gt;null&lt;/code&gt;<a name="line.1339"></a>
<FONT color="green">1340</FONT>         * @throws IOException in case of an I/O error<a name="line.1340"></a>
<FONT color="green">1341</FONT>         * @since Commons IO 1.3.1<a name="line.1341"></a>
<FONT color="green">1342</FONT>         */<a name="line.1342"></a>
<FONT color="green">1343</FONT>        public static String readFileToString(File file) throws IOException {<a name="line.1343"></a>
<FONT color="green">1344</FONT>            return readFileToString(file, null);<a name="line.1344"></a>
<FONT color="green">1345</FONT>        }<a name="line.1345"></a>
<FONT color="green">1346</FONT>    <a name="line.1346"></a>
<FONT color="green">1347</FONT>        /**<a name="line.1347"></a>
<FONT color="green">1348</FONT>         * Reads the contents of a file into a byte array.<a name="line.1348"></a>
<FONT color="green">1349</FONT>         * The file is always closed.<a name="line.1349"></a>
<FONT color="green">1350</FONT>         *<a name="line.1350"></a>
<FONT color="green">1351</FONT>         * @param file  the file to read, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1351"></a>
<FONT color="green">1352</FONT>         * @return the file contents, never &lt;code&gt;null&lt;/code&gt;<a name="line.1352"></a>
<FONT color="green">1353</FONT>         * @throws IOException in case of an I/O error<a name="line.1353"></a>
<FONT color="green">1354</FONT>         * @since Commons IO 1.1<a name="line.1354"></a>
<FONT color="green">1355</FONT>         */<a name="line.1355"></a>
<FONT color="green">1356</FONT>        public static byte[] readFileToByteArray(File file) throws IOException {<a name="line.1356"></a>
<FONT color="green">1357</FONT>            InputStream in = null;<a name="line.1357"></a>
<FONT color="green">1358</FONT>            try {<a name="line.1358"></a>
<FONT color="green">1359</FONT>                in = openInputStream(file);<a name="line.1359"></a>
<FONT color="green">1360</FONT>                return IOUtils.toByteArray(in);<a name="line.1360"></a>
<FONT color="green">1361</FONT>            } finally {<a name="line.1361"></a>
<FONT color="green">1362</FONT>                IOUtils.closeQuietly(in);<a name="line.1362"></a>
<FONT color="green">1363</FONT>            }<a name="line.1363"></a>
<FONT color="green">1364</FONT>        }<a name="line.1364"></a>
<FONT color="green">1365</FONT>    <a name="line.1365"></a>
<FONT color="green">1366</FONT>        /**<a name="line.1366"></a>
<FONT color="green">1367</FONT>         * Reads the contents of a file line by line to a List of Strings.<a name="line.1367"></a>
<FONT color="green">1368</FONT>         * The file is always closed.<a name="line.1368"></a>
<FONT color="green">1369</FONT>         *<a name="line.1369"></a>
<FONT color="green">1370</FONT>         * @param file  the file to read, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1370"></a>
<FONT color="green">1371</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1371"></a>
<FONT color="green">1372</FONT>         * @return the list of Strings representing each line in the file, never &lt;code&gt;null&lt;/code&gt;<a name="line.1372"></a>
<FONT color="green">1373</FONT>         * @throws IOException in case of an I/O error<a name="line.1373"></a>
<FONT color="green">1374</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1374"></a>
<FONT color="green">1375</FONT>         * @since Commons IO 1.1<a name="line.1375"></a>
<FONT color="green">1376</FONT>         */<a name="line.1376"></a>
<FONT color="green">1377</FONT>        public static List&lt;String&gt; readLines(File file, String encoding) throws IOException {<a name="line.1377"></a>
<FONT color="green">1378</FONT>            InputStream in = null;<a name="line.1378"></a>
<FONT color="green">1379</FONT>            try {<a name="line.1379"></a>
<FONT color="green">1380</FONT>                in = openInputStream(file);<a name="line.1380"></a>
<FONT color="green">1381</FONT>                return IOUtils.readLines(in, encoding);<a name="line.1381"></a>
<FONT color="green">1382</FONT>            } finally {<a name="line.1382"></a>
<FONT color="green">1383</FONT>                IOUtils.closeQuietly(in);<a name="line.1383"></a>
<FONT color="green">1384</FONT>            }<a name="line.1384"></a>
<FONT color="green">1385</FONT>        }<a name="line.1385"></a>
<FONT color="green">1386</FONT>    <a name="line.1386"></a>
<FONT color="green">1387</FONT>        /**<a name="line.1387"></a>
<FONT color="green">1388</FONT>         * Reads the contents of a file line by line to a List of Strings using the default encoding for the VM.<a name="line.1388"></a>
<FONT color="green">1389</FONT>         * The file is always closed.<a name="line.1389"></a>
<FONT color="green">1390</FONT>         *<a name="line.1390"></a>
<FONT color="green">1391</FONT>         * @param file  the file to read, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1391"></a>
<FONT color="green">1392</FONT>         * @return the list of Strings representing each line in the file, never &lt;code&gt;null&lt;/code&gt;<a name="line.1392"></a>
<FONT color="green">1393</FONT>         * @throws IOException in case of an I/O error<a name="line.1393"></a>
<FONT color="green">1394</FONT>         * @since Commons IO 1.3<a name="line.1394"></a>
<FONT color="green">1395</FONT>         */<a name="line.1395"></a>
<FONT color="green">1396</FONT>        public static List&lt;String&gt; readLines(File file) throws IOException {<a name="line.1396"></a>
<FONT color="green">1397</FONT>            return readLines(file, null);<a name="line.1397"></a>
<FONT color="green">1398</FONT>        }<a name="line.1398"></a>
<FONT color="green">1399</FONT>    <a name="line.1399"></a>
<FONT color="green">1400</FONT>        /**<a name="line.1400"></a>
<FONT color="green">1401</FONT>         * Returns an Iterator for the lines in a &lt;code&gt;File&lt;/code&gt;.<a name="line.1401"></a>
<FONT color="green">1402</FONT>         * &lt;p&gt;<a name="line.1402"></a>
<FONT color="green">1403</FONT>         * This method opens an &lt;code&gt;InputStream&lt;/code&gt; for the file.<a name="line.1403"></a>
<FONT color="green">1404</FONT>         * When you have finished with the iterator you should close the stream<a name="line.1404"></a>
<FONT color="green">1405</FONT>         * to free internal resources. This can be done by calling the<a name="line.1405"></a>
<FONT color="green">1406</FONT>         * {@link LineIterator#close()} or<a name="line.1406"></a>
<FONT color="green">1407</FONT>         * {@link LineIterator#closeQuietly(LineIterator)} method.<a name="line.1407"></a>
<FONT color="green">1408</FONT>         * &lt;p&gt;<a name="line.1408"></a>
<FONT color="green">1409</FONT>         * The recommended usage pattern is:<a name="line.1409"></a>
<FONT color="green">1410</FONT>         * &lt;pre&gt;<a name="line.1410"></a>
<FONT color="green">1411</FONT>         * LineIterator it = FileUtils.lineIterator(file, "UTF-8");<a name="line.1411"></a>
<FONT color="green">1412</FONT>         * try {<a name="line.1412"></a>
<FONT color="green">1413</FONT>         *   while (it.hasNext()) {<a name="line.1413"></a>
<FONT color="green">1414</FONT>         *     String line = it.nextLine();<a name="line.1414"></a>
<FONT color="green">1415</FONT>         *     /// do something with line<a name="line.1415"></a>
<FONT color="green">1416</FONT>         *   }<a name="line.1416"></a>
<FONT color="green">1417</FONT>         * } finally {<a name="line.1417"></a>
<FONT color="green">1418</FONT>         *   LineIterator.closeQuietly(iterator);<a name="line.1418"></a>
<FONT color="green">1419</FONT>         * }<a name="line.1419"></a>
<FONT color="green">1420</FONT>         * &lt;/pre&gt;<a name="line.1420"></a>
<FONT color="green">1421</FONT>         * &lt;p&gt;<a name="line.1421"></a>
<FONT color="green">1422</FONT>         * If an exception occurs during the creation of the iterator, the<a name="line.1422"></a>
<FONT color="green">1423</FONT>         * underlying stream is closed.<a name="line.1423"></a>
<FONT color="green">1424</FONT>         *<a name="line.1424"></a>
<FONT color="green">1425</FONT>         * @param file  the file to open for input, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1425"></a>
<FONT color="green">1426</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1426"></a>
<FONT color="green">1427</FONT>         * @return an Iterator of the lines in the file, never &lt;code&gt;null&lt;/code&gt;<a name="line.1427"></a>
<FONT color="green">1428</FONT>         * @throws IOException in case of an I/O error (file closed)<a name="line.1428"></a>
<FONT color="green">1429</FONT>         * @since Commons IO 1.2<a name="line.1429"></a>
<FONT color="green">1430</FONT>         */<a name="line.1430"></a>
<FONT color="green">1431</FONT>        public static LineIterator lineIterator(File file, String encoding) throws IOException {<a name="line.1431"></a>
<FONT color="green">1432</FONT>            InputStream in = null;<a name="line.1432"></a>
<FONT color="green">1433</FONT>            try {<a name="line.1433"></a>
<FONT color="green">1434</FONT>                in = openInputStream(file);<a name="line.1434"></a>
<FONT color="green">1435</FONT>                return IOUtils.lineIterator(in, encoding);<a name="line.1435"></a>
<FONT color="green">1436</FONT>            } catch (IOException ex) {<a name="line.1436"></a>
<FONT color="green">1437</FONT>                IOUtils.closeQuietly(in);<a name="line.1437"></a>
<FONT color="green">1438</FONT>                throw ex;<a name="line.1438"></a>
<FONT color="green">1439</FONT>            } catch (RuntimeException ex) {<a name="line.1439"></a>
<FONT color="green">1440</FONT>                IOUtils.closeQuietly(in);<a name="line.1440"></a>
<FONT color="green">1441</FONT>                throw ex;<a name="line.1441"></a>
<FONT color="green">1442</FONT>            }<a name="line.1442"></a>
<FONT color="green">1443</FONT>        }<a name="line.1443"></a>
<FONT color="green">1444</FONT>    <a name="line.1444"></a>
<FONT color="green">1445</FONT>        /**<a name="line.1445"></a>
<FONT color="green">1446</FONT>         * Returns an Iterator for the lines in a &lt;code&gt;File&lt;/code&gt; using the default encoding for the VM.<a name="line.1446"></a>
<FONT color="green">1447</FONT>         *<a name="line.1447"></a>
<FONT color="green">1448</FONT>         * @param file  the file to open for input, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1448"></a>
<FONT color="green">1449</FONT>         * @return an Iterator of the lines in the file, never &lt;code&gt;null&lt;/code&gt;<a name="line.1449"></a>
<FONT color="green">1450</FONT>         * @throws IOException in case of an I/O error (file closed)<a name="line.1450"></a>
<FONT color="green">1451</FONT>         * @since Commons IO 1.3<a name="line.1451"></a>
<FONT color="green">1452</FONT>         * @see #lineIterator(File, String)<a name="line.1452"></a>
<FONT color="green">1453</FONT>         */<a name="line.1453"></a>
<FONT color="green">1454</FONT>        public static LineIterator lineIterator(File file) throws IOException {<a name="line.1454"></a>
<FONT color="green">1455</FONT>            return lineIterator(file, null);<a name="line.1455"></a>
<FONT color="green">1456</FONT>        }<a name="line.1456"></a>
<FONT color="green">1457</FONT>    <a name="line.1457"></a>
<FONT color="green">1458</FONT>        //-----------------------------------------------------------------------<a name="line.1458"></a>
<FONT color="green">1459</FONT>        /**<a name="line.1459"></a>
<FONT color="green">1460</FONT>         * Writes a String to a file creating the file if it does not exist.<a name="line.1460"></a>
<FONT color="green">1461</FONT>         *<a name="line.1461"></a>
<FONT color="green">1462</FONT>         * NOTE: As from v1.3, the parent directories of the file will be created<a name="line.1462"></a>
<FONT color="green">1463</FONT>         * if they do not exist.<a name="line.1463"></a>
<FONT color="green">1464</FONT>         *<a name="line.1464"></a>
<FONT color="green">1465</FONT>         * @param file  the file to write<a name="line.1465"></a>
<FONT color="green">1466</FONT>         * @param data  the content to write to the file<a name="line.1466"></a>
<FONT color="green">1467</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1467"></a>
<FONT color="green">1468</FONT>         * @throws IOException in case of an I/O error<a name="line.1468"></a>
<FONT color="green">1469</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1469"></a>
<FONT color="green">1470</FONT>         */<a name="line.1470"></a>
<FONT color="green">1471</FONT>        public static void writeStringToFile(File file, String data, String encoding) throws IOException {<a name="line.1471"></a>
<FONT color="green">1472</FONT>            OutputStream out = null;<a name="line.1472"></a>
<FONT color="green">1473</FONT>            try {<a name="line.1473"></a>
<FONT color="green">1474</FONT>                out = openOutputStream(file);<a name="line.1474"></a>
<FONT color="green">1475</FONT>                IOUtils.write(data, out, encoding);<a name="line.1475"></a>
<FONT color="green">1476</FONT>            } finally {<a name="line.1476"></a>
<FONT color="green">1477</FONT>                IOUtils.closeQuietly(out);<a name="line.1477"></a>
<FONT color="green">1478</FONT>            }<a name="line.1478"></a>
<FONT color="green">1479</FONT>        }<a name="line.1479"></a>
<FONT color="green">1480</FONT>    <a name="line.1480"></a>
<FONT color="green">1481</FONT>        /**<a name="line.1481"></a>
<FONT color="green">1482</FONT>         * Writes a String to a file creating the file if it does not exist using the default encoding for the VM.<a name="line.1482"></a>
<FONT color="green">1483</FONT>         * <a name="line.1483"></a>
<FONT color="green">1484</FONT>         * @param file  the file to write<a name="line.1484"></a>
<FONT color="green">1485</FONT>         * @param data  the content to write to the file<a name="line.1485"></a>
<FONT color="green">1486</FONT>         * @throws IOException in case of an I/O error<a name="line.1486"></a>
<FONT color="green">1487</FONT>         */<a name="line.1487"></a>
<FONT color="green">1488</FONT>        public static void writeStringToFile(File file, String data) throws IOException {<a name="line.1488"></a>
<FONT color="green">1489</FONT>            writeStringToFile(file, data, null);<a name="line.1489"></a>
<FONT color="green">1490</FONT>        }<a name="line.1490"></a>
<FONT color="green">1491</FONT>    <a name="line.1491"></a>
<FONT color="green">1492</FONT>        /**<a name="line.1492"></a>
<FONT color="green">1493</FONT>         * Writes a CharSequence to a file creating the file if it does not exist using the default encoding for the VM.<a name="line.1493"></a>
<FONT color="green">1494</FONT>         * <a name="line.1494"></a>
<FONT color="green">1495</FONT>         * @param file  the file to write<a name="line.1495"></a>
<FONT color="green">1496</FONT>         * @param data  the content to write to the file<a name="line.1496"></a>
<FONT color="green">1497</FONT>         * @throws IOException in case of an I/O error<a name="line.1497"></a>
<FONT color="green">1498</FONT>         * @since Commons IO 2.0<a name="line.1498"></a>
<FONT color="green">1499</FONT>         */<a name="line.1499"></a>
<FONT color="green">1500</FONT>        public static void write(File file, CharSequence data) throws IOException {<a name="line.1500"></a>
<FONT color="green">1501</FONT>            String str = data == null ? null : data.toString();<a name="line.1501"></a>
<FONT color="green">1502</FONT>            writeStringToFile(file, str);<a name="line.1502"></a>
<FONT color="green">1503</FONT>        }<a name="line.1503"></a>
<FONT color="green">1504</FONT>    <a name="line.1504"></a>
<FONT color="green">1505</FONT>        /**<a name="line.1505"></a>
<FONT color="green">1506</FONT>         * Writes a CharSequence to a file creating the file if it does not exist.<a name="line.1506"></a>
<FONT color="green">1507</FONT>         *<a name="line.1507"></a>
<FONT color="green">1508</FONT>         * @param file  the file to write<a name="line.1508"></a>
<FONT color="green">1509</FONT>         * @param data  the content to write to the file<a name="line.1509"></a>
<FONT color="green">1510</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1510"></a>
<FONT color="green">1511</FONT>         * @throws IOException in case of an I/O error<a name="line.1511"></a>
<FONT color="green">1512</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1512"></a>
<FONT color="green">1513</FONT>         * @since Commons IO 2.0<a name="line.1513"></a>
<FONT color="green">1514</FONT>         */<a name="line.1514"></a>
<FONT color="green">1515</FONT>        public static void write(File file, CharSequence data, String encoding) throws IOException {<a name="line.1515"></a>
<FONT color="green">1516</FONT>            String str = data == null ? null : data.toString();<a name="line.1516"></a>
<FONT color="green">1517</FONT>            writeStringToFile(file, str, encoding);<a name="line.1517"></a>
<FONT color="green">1518</FONT>        }<a name="line.1518"></a>
<FONT color="green">1519</FONT>    <a name="line.1519"></a>
<FONT color="green">1520</FONT>        /**<a name="line.1520"></a>
<FONT color="green">1521</FONT>         * Writes a byte array to a file creating the file if it does not exist.<a name="line.1521"></a>
<FONT color="green">1522</FONT>         * &lt;p&gt;<a name="line.1522"></a>
<FONT color="green">1523</FONT>         * NOTE: As from v1.3, the parent directories of the file will be created<a name="line.1523"></a>
<FONT color="green">1524</FONT>         * if they do not exist.<a name="line.1524"></a>
<FONT color="green">1525</FONT>         *<a name="line.1525"></a>
<FONT color="green">1526</FONT>         * @param file  the file to write to<a name="line.1526"></a>
<FONT color="green">1527</FONT>         * @param data  the content to write to the file<a name="line.1527"></a>
<FONT color="green">1528</FONT>         * @throws IOException in case of an I/O error<a name="line.1528"></a>
<FONT color="green">1529</FONT>         * @since Commons IO 1.1<a name="line.1529"></a>
<FONT color="green">1530</FONT>         */<a name="line.1530"></a>
<FONT color="green">1531</FONT>        public static void writeByteArrayToFile(File file, byte[] data) throws IOException {<a name="line.1531"></a>
<FONT color="green">1532</FONT>            OutputStream out = null;<a name="line.1532"></a>
<FONT color="green">1533</FONT>            try {<a name="line.1533"></a>
<FONT color="green">1534</FONT>                out = openOutputStream(file);<a name="line.1534"></a>
<FONT color="green">1535</FONT>                out.write(data);<a name="line.1535"></a>
<FONT color="green">1536</FONT>            } finally {<a name="line.1536"></a>
<FONT color="green">1537</FONT>                IOUtils.closeQuietly(out);<a name="line.1537"></a>
<FONT color="green">1538</FONT>            }<a name="line.1538"></a>
<FONT color="green">1539</FONT>        }<a name="line.1539"></a>
<FONT color="green">1540</FONT>    <a name="line.1540"></a>
<FONT color="green">1541</FONT>        /**<a name="line.1541"></a>
<FONT color="green">1542</FONT>         * Writes the &lt;code&gt;toString()&lt;/code&gt; value of each item in a collection to<a name="line.1542"></a>
<FONT color="green">1543</FONT>         * the specified &lt;code&gt;File&lt;/code&gt; line by line.<a name="line.1543"></a>
<FONT color="green">1544</FONT>         * The specified character encoding and the default line ending will be used.<a name="line.1544"></a>
<FONT color="green">1545</FONT>         * &lt;p&gt;<a name="line.1545"></a>
<FONT color="green">1546</FONT>         * NOTE: As from v1.3, the parent directories of the file will be created<a name="line.1546"></a>
<FONT color="green">1547</FONT>         * if they do not exist.<a name="line.1547"></a>
<FONT color="green">1548</FONT>         *<a name="line.1548"></a>
<FONT color="green">1549</FONT>         * @param file  the file to write to<a name="line.1549"></a>
<FONT color="green">1550</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1550"></a>
<FONT color="green">1551</FONT>         * @param lines  the lines to write, &lt;code&gt;null&lt;/code&gt; entries produce blank lines<a name="line.1551"></a>
<FONT color="green">1552</FONT>         * @throws IOException in case of an I/O error<a name="line.1552"></a>
<FONT color="green">1553</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1553"></a>
<FONT color="green">1554</FONT>         * @since Commons IO 1.1<a name="line.1554"></a>
<FONT color="green">1555</FONT>         */<a name="line.1555"></a>
<FONT color="green">1556</FONT>        public static void writeLines(File file, String encoding, Collection&lt;?&gt; lines) throws IOException {<a name="line.1556"></a>
<FONT color="green">1557</FONT>            writeLines(file, encoding, lines, null);<a name="line.1557"></a>
<FONT color="green">1558</FONT>        }<a name="line.1558"></a>
<FONT color="green">1559</FONT>    <a name="line.1559"></a>
<FONT color="green">1560</FONT>        /**<a name="line.1560"></a>
<FONT color="green">1561</FONT>         * Writes the &lt;code&gt;toString()&lt;/code&gt; value of each item in a collection to<a name="line.1561"></a>
<FONT color="green">1562</FONT>         * the specified &lt;code&gt;File&lt;/code&gt; line by line.<a name="line.1562"></a>
<FONT color="green">1563</FONT>         * The default VM encoding and the default line ending will be used.<a name="line.1563"></a>
<FONT color="green">1564</FONT>         *<a name="line.1564"></a>
<FONT color="green">1565</FONT>         * @param file  the file to write to<a name="line.1565"></a>
<FONT color="green">1566</FONT>         * @param lines  the lines to write, &lt;code&gt;null&lt;/code&gt; entries produce blank lines<a name="line.1566"></a>
<FONT color="green">1567</FONT>         * @throws IOException in case of an I/O error<a name="line.1567"></a>
<FONT color="green">1568</FONT>         * @since Commons IO 1.3<a name="line.1568"></a>
<FONT color="green">1569</FONT>         */<a name="line.1569"></a>
<FONT color="green">1570</FONT>        public static void writeLines(File file, Collection&lt;?&gt; lines) throws IOException {<a name="line.1570"></a>
<FONT color="green">1571</FONT>            writeLines(file, null, lines, null);<a name="line.1571"></a>
<FONT color="green">1572</FONT>        }<a name="line.1572"></a>
<FONT color="green">1573</FONT>    <a name="line.1573"></a>
<FONT color="green">1574</FONT>        /**<a name="line.1574"></a>
<FONT color="green">1575</FONT>         * Writes the &lt;code&gt;toString()&lt;/code&gt; value of each item in a collection to<a name="line.1575"></a>
<FONT color="green">1576</FONT>         * the specified &lt;code&gt;File&lt;/code&gt; line by line.<a name="line.1576"></a>
<FONT color="green">1577</FONT>         * The specified character encoding and the line ending will be used.<a name="line.1577"></a>
<FONT color="green">1578</FONT>         * &lt;p&gt;<a name="line.1578"></a>
<FONT color="green">1579</FONT>         * NOTE: As from v1.3, the parent directories of the file will be created<a name="line.1579"></a>
<FONT color="green">1580</FONT>         * if they do not exist.<a name="line.1580"></a>
<FONT color="green">1581</FONT>         *<a name="line.1581"></a>
<FONT color="green">1582</FONT>         * @param file  the file to write to<a name="line.1582"></a>
<FONT color="green">1583</FONT>         * @param encoding  the encoding to use, &lt;code&gt;null&lt;/code&gt; means platform default<a name="line.1583"></a>
<FONT color="green">1584</FONT>         * @param lines  the lines to write, &lt;code&gt;null&lt;/code&gt; entries produce blank lines<a name="line.1584"></a>
<FONT color="green">1585</FONT>         * @param lineEnding  the line separator to use, &lt;code&gt;null&lt;/code&gt; is system default<a name="line.1585"></a>
<FONT color="green">1586</FONT>         * @throws IOException in case of an I/O error<a name="line.1586"></a>
<FONT color="green">1587</FONT>         * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM<a name="line.1587"></a>
<FONT color="green">1588</FONT>         * @since Commons IO 1.1<a name="line.1588"></a>
<FONT color="green">1589</FONT>         */<a name="line.1589"></a>
<FONT color="green">1590</FONT>        public static void writeLines(File file, String encoding, Collection&lt;?&gt; lines, String lineEnding)<a name="line.1590"></a>
<FONT color="green">1591</FONT>            throws IOException {<a name="line.1591"></a>
<FONT color="green">1592</FONT>            OutputStream out = null;<a name="line.1592"></a>
<FONT color="green">1593</FONT>            try {<a name="line.1593"></a>
<FONT color="green">1594</FONT>                out = openOutputStream(file);<a name="line.1594"></a>
<FONT color="green">1595</FONT>                IOUtils.writeLines(lines, lineEnding, out, encoding);<a name="line.1595"></a>
<FONT color="green">1596</FONT>            } finally {<a name="line.1596"></a>
<FONT color="green">1597</FONT>                IOUtils.closeQuietly(out);<a name="line.1597"></a>
<FONT color="green">1598</FONT>            }<a name="line.1598"></a>
<FONT color="green">1599</FONT>        }<a name="line.1599"></a>
<FONT color="green">1600</FONT>    <a name="line.1600"></a>
<FONT color="green">1601</FONT>        /**<a name="line.1601"></a>
<FONT color="green">1602</FONT>         * Writes the &lt;code&gt;toString()&lt;/code&gt; value of each item in a collection to<a name="line.1602"></a>
<FONT color="green">1603</FONT>         * the specified &lt;code&gt;File&lt;/code&gt; line by line.<a name="line.1603"></a>
<FONT color="green">1604</FONT>         * The default VM encoding and the specified line ending will be used.<a name="line.1604"></a>
<FONT color="green">1605</FONT>         *<a name="line.1605"></a>
<FONT color="green">1606</FONT>         * @param file  the file to write to<a name="line.1606"></a>
<FONT color="green">1607</FONT>         * @param lines  the lines to write, &lt;code&gt;null&lt;/code&gt; entries produce blank lines<a name="line.1607"></a>
<FONT color="green">1608</FONT>         * @param lineEnding  the line separator to use, &lt;code&gt;null&lt;/code&gt; is system default<a name="line.1608"></a>
<FONT color="green">1609</FONT>         * @throws IOException in case of an I/O error<a name="line.1609"></a>
<FONT color="green">1610</FONT>         * @since Commons IO 1.3<a name="line.1610"></a>
<FONT color="green">1611</FONT>         */<a name="line.1611"></a>
<FONT color="green">1612</FONT>        public static void writeLines(File file, Collection&lt;?&gt; lines, String lineEnding) throws IOException {<a name="line.1612"></a>
<FONT color="green">1613</FONT>            writeLines(file, null, lines, lineEnding);<a name="line.1613"></a>
<FONT color="green">1614</FONT>        }<a name="line.1614"></a>
<FONT color="green">1615</FONT>    <a name="line.1615"></a>
<FONT color="green">1616</FONT>        //-----------------------------------------------------------------------<a name="line.1616"></a>
<FONT color="green">1617</FONT>        /**<a name="line.1617"></a>
<FONT color="green">1618</FONT>         * Deletes a file. If file is a directory, delete it and all sub-directories.<a name="line.1618"></a>
<FONT color="green">1619</FONT>         * &lt;p&gt;<a name="line.1619"></a>
<FONT color="green">1620</FONT>         * The difference between File.delete() and this method are:<a name="line.1620"></a>
<FONT color="green">1621</FONT>         * &lt;ul&gt;<a name="line.1621"></a>
<FONT color="green">1622</FONT>         * &lt;li&gt;A directory to be deleted does not have to be empty.&lt;/li&gt;<a name="line.1622"></a>
<FONT color="green">1623</FONT>         * &lt;li&gt;You get exceptions when a file or directory cannot be deleted.<a name="line.1623"></a>
<FONT color="green">1624</FONT>         *      (java.io.File methods returns a boolean)&lt;/li&gt;<a name="line.1624"></a>
<FONT color="green">1625</FONT>         * &lt;/ul&gt;<a name="line.1625"></a>
<FONT color="green">1626</FONT>         *<a name="line.1626"></a>
<FONT color="green">1627</FONT>         * @param file  file or directory to delete, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1627"></a>
<FONT color="green">1628</FONT>         * @throws NullPointerException if the directory is &lt;code&gt;null&lt;/code&gt;<a name="line.1628"></a>
<FONT color="green">1629</FONT>         * @throws FileNotFoundException if the file was not found<a name="line.1629"></a>
<FONT color="green">1630</FONT>         * @throws IOException in case deletion is unsuccessful<a name="line.1630"></a>
<FONT color="green">1631</FONT>         */<a name="line.1631"></a>
<FONT color="green">1632</FONT>        public static void forceDelete(File file) throws IOException {<a name="line.1632"></a>
<FONT color="green">1633</FONT>            if (file.isDirectory()) {<a name="line.1633"></a>
<FONT color="green">1634</FONT>                deleteDirectory(file);<a name="line.1634"></a>
<FONT color="green">1635</FONT>            } else {<a name="line.1635"></a>
<FONT color="green">1636</FONT>                boolean filePresent = file.exists();<a name="line.1636"></a>
<FONT color="green">1637</FONT>                if (!file.delete()) {<a name="line.1637"></a>
<FONT color="green">1638</FONT>                    if (!filePresent){<a name="line.1638"></a>
<FONT color="green">1639</FONT>                        throw new FileNotFoundException("File does not exist: " + file);<a name="line.1639"></a>
<FONT color="green">1640</FONT>                    }<a name="line.1640"></a>
<FONT color="green">1641</FONT>                    String message =<a name="line.1641"></a>
<FONT color="green">1642</FONT>                        "Unable to delete file: " + file;<a name="line.1642"></a>
<FONT color="green">1643</FONT>                    throw new IOException(message);<a name="line.1643"></a>
<FONT color="green">1644</FONT>                }<a name="line.1644"></a>
<FONT color="green">1645</FONT>            }<a name="line.1645"></a>
<FONT color="green">1646</FONT>        }<a name="line.1646"></a>
<FONT color="green">1647</FONT>    <a name="line.1647"></a>
<FONT color="green">1648</FONT>        /**<a name="line.1648"></a>
<FONT color="green">1649</FONT>         * Schedules a file to be deleted when JVM exits.<a name="line.1649"></a>
<FONT color="green">1650</FONT>         * If file is directory delete it and all sub-directories.<a name="line.1650"></a>
<FONT color="green">1651</FONT>         *<a name="line.1651"></a>
<FONT color="green">1652</FONT>         * @param file  file or directory to delete, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1652"></a>
<FONT color="green">1653</FONT>         * @throws NullPointerException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1653"></a>
<FONT color="green">1654</FONT>         * @throws IOException in case deletion is unsuccessful<a name="line.1654"></a>
<FONT color="green">1655</FONT>         */<a name="line.1655"></a>
<FONT color="green">1656</FONT>        public static void forceDeleteOnExit(File file) throws IOException {<a name="line.1656"></a>
<FONT color="green">1657</FONT>            if (file.isDirectory()) {<a name="line.1657"></a>
<FONT color="green">1658</FONT>                deleteDirectoryOnExit(file);<a name="line.1658"></a>
<FONT color="green">1659</FONT>            } else {<a name="line.1659"></a>
<FONT color="green">1660</FONT>                file.deleteOnExit();<a name="line.1660"></a>
<FONT color="green">1661</FONT>            }<a name="line.1661"></a>
<FONT color="green">1662</FONT>        }<a name="line.1662"></a>
<FONT color="green">1663</FONT>    <a name="line.1663"></a>
<FONT color="green">1664</FONT>        /**<a name="line.1664"></a>
<FONT color="green">1665</FONT>         * Schedules a directory recursively for deletion on JVM exit.<a name="line.1665"></a>
<FONT color="green">1666</FONT>         *<a name="line.1666"></a>
<FONT color="green">1667</FONT>         * @param directory  directory to delete, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1667"></a>
<FONT color="green">1668</FONT>         * @throws NullPointerException if the directory is &lt;code&gt;null&lt;/code&gt;<a name="line.1668"></a>
<FONT color="green">1669</FONT>         * @throws IOException in case deletion is unsuccessful<a name="line.1669"></a>
<FONT color="green">1670</FONT>         */<a name="line.1670"></a>
<FONT color="green">1671</FONT>        private static void deleteDirectoryOnExit(File directory) throws IOException {<a name="line.1671"></a>
<FONT color="green">1672</FONT>            if (!directory.exists()) {<a name="line.1672"></a>
<FONT color="green">1673</FONT>                return;<a name="line.1673"></a>
<FONT color="green">1674</FONT>            }<a name="line.1674"></a>
<FONT color="green">1675</FONT>    <a name="line.1675"></a>
<FONT color="green">1676</FONT>            if (!isSymlink(directory)) {<a name="line.1676"></a>
<FONT color="green">1677</FONT>                cleanDirectoryOnExit(directory);<a name="line.1677"></a>
<FONT color="green">1678</FONT>            }<a name="line.1678"></a>
<FONT color="green">1679</FONT>            directory.deleteOnExit();<a name="line.1679"></a>
<FONT color="green">1680</FONT>        }<a name="line.1680"></a>
<FONT color="green">1681</FONT>    <a name="line.1681"></a>
<FONT color="green">1682</FONT>        /**<a name="line.1682"></a>
<FONT color="green">1683</FONT>         * Cleans a directory without deleting it.<a name="line.1683"></a>
<FONT color="green">1684</FONT>         *<a name="line.1684"></a>
<FONT color="green">1685</FONT>         * @param directory  directory to clean, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1685"></a>
<FONT color="green">1686</FONT>         * @throws NullPointerException if the directory is &lt;code&gt;null&lt;/code&gt;<a name="line.1686"></a>
<FONT color="green">1687</FONT>         * @throws IOException in case cleaning is unsuccessful<a name="line.1687"></a>
<FONT color="green">1688</FONT>         */<a name="line.1688"></a>
<FONT color="green">1689</FONT>        private static void cleanDirectoryOnExit(File directory) throws IOException {<a name="line.1689"></a>
<FONT color="green">1690</FONT>            if (!directory.exists()) {<a name="line.1690"></a>
<FONT color="green">1691</FONT>                String message = directory + " does not exist";<a name="line.1691"></a>
<FONT color="green">1692</FONT>                throw new IllegalArgumentException(message);<a name="line.1692"></a>
<FONT color="green">1693</FONT>            }<a name="line.1693"></a>
<FONT color="green">1694</FONT>    <a name="line.1694"></a>
<FONT color="green">1695</FONT>            if (!directory.isDirectory()) {<a name="line.1695"></a>
<FONT color="green">1696</FONT>                String message = directory + " is not a directory";<a name="line.1696"></a>
<FONT color="green">1697</FONT>                throw new IllegalArgumentException(message);<a name="line.1697"></a>
<FONT color="green">1698</FONT>            }<a name="line.1698"></a>
<FONT color="green">1699</FONT>    <a name="line.1699"></a>
<FONT color="green">1700</FONT>            File[] files = directory.listFiles();<a name="line.1700"></a>
<FONT color="green">1701</FONT>            if (files == null) {  // null if security restricted<a name="line.1701"></a>
<FONT color="green">1702</FONT>                throw new IOException("Failed to list contents of " + directory);<a name="line.1702"></a>
<FONT color="green">1703</FONT>            }<a name="line.1703"></a>
<FONT color="green">1704</FONT>    <a name="line.1704"></a>
<FONT color="green">1705</FONT>            IOException exception = null;<a name="line.1705"></a>
<FONT color="green">1706</FONT>            for (File file : files) {<a name="line.1706"></a>
<FONT color="green">1707</FONT>                try {<a name="line.1707"></a>
<FONT color="green">1708</FONT>                    forceDeleteOnExit(file);<a name="line.1708"></a>
<FONT color="green">1709</FONT>                } catch (IOException ioe) {<a name="line.1709"></a>
<FONT color="green">1710</FONT>                    exception = ioe;<a name="line.1710"></a>
<FONT color="green">1711</FONT>                }<a name="line.1711"></a>
<FONT color="green">1712</FONT>            }<a name="line.1712"></a>
<FONT color="green">1713</FONT>    <a name="line.1713"></a>
<FONT color="green">1714</FONT>            if (null != exception) {<a name="line.1714"></a>
<FONT color="green">1715</FONT>                throw exception;<a name="line.1715"></a>
<FONT color="green">1716</FONT>            }<a name="line.1716"></a>
<FONT color="green">1717</FONT>        }<a name="line.1717"></a>
<FONT color="green">1718</FONT>    <a name="line.1718"></a>
<FONT color="green">1719</FONT>        /**<a name="line.1719"></a>
<FONT color="green">1720</FONT>         * Makes a directory, including any necessary but nonexistent parent<a name="line.1720"></a>
<FONT color="green">1721</FONT>         * directories. If a file already exists with specified name but it is<a name="line.1721"></a>
<FONT color="green">1722</FONT>         * not a directory then an IOException is thrown.<a name="line.1722"></a>
<FONT color="green">1723</FONT>         * If the directory cannot be created (or does not already exist)<a name="line.1723"></a>
<FONT color="green">1724</FONT>         * then an IOException is thrown.<a name="line.1724"></a>
<FONT color="green">1725</FONT>         *<a name="line.1725"></a>
<FONT color="green">1726</FONT>         * @param directory  directory to create, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1726"></a>
<FONT color="green">1727</FONT>         * @throws NullPointerException if the directory is &lt;code&gt;null&lt;/code&gt;<a name="line.1727"></a>
<FONT color="green">1728</FONT>         * @throws IOException if the directory cannot be created or the file already exists but is not a directory<a name="line.1728"></a>
<FONT color="green">1729</FONT>         */<a name="line.1729"></a>
<FONT color="green">1730</FONT>        public static void forceMkdir(File directory) throws IOException {<a name="line.1730"></a>
<FONT color="green">1731</FONT>            if (directory.exists()) {<a name="line.1731"></a>
<FONT color="green">1732</FONT>                if (!directory.isDirectory()) {<a name="line.1732"></a>
<FONT color="green">1733</FONT>                    String message =<a name="line.1733"></a>
<FONT color="green">1734</FONT>                        "File "<a name="line.1734"></a>
<FONT color="green">1735</FONT>                            + directory<a name="line.1735"></a>
<FONT color="green">1736</FONT>                            + " exists and is "<a name="line.1736"></a>
<FONT color="green">1737</FONT>                            + "not a directory. Unable to create directory.";<a name="line.1737"></a>
<FONT color="green">1738</FONT>                    throw new IOException(message);<a name="line.1738"></a>
<FONT color="green">1739</FONT>                }<a name="line.1739"></a>
<FONT color="green">1740</FONT>            } else {<a name="line.1740"></a>
<FONT color="green">1741</FONT>                if (!directory.mkdirs()) {<a name="line.1741"></a>
<FONT color="green">1742</FONT>                    // Double-check that some other thread or process hasn't made<a name="line.1742"></a>
<FONT color="green">1743</FONT>                    // the directory in the background<a name="line.1743"></a>
<FONT color="green">1744</FONT>                    if (!directory.isDirectory())<a name="line.1744"></a>
<FONT color="green">1745</FONT>                    {<a name="line.1745"></a>
<FONT color="green">1746</FONT>                        String message =<a name="line.1746"></a>
<FONT color="green">1747</FONT>                            "Unable to create directory " + directory;<a name="line.1747"></a>
<FONT color="green">1748</FONT>                        throw new IOException(message);<a name="line.1748"></a>
<FONT color="green">1749</FONT>                    }<a name="line.1749"></a>
<FONT color="green">1750</FONT>                }<a name="line.1750"></a>
<FONT color="green">1751</FONT>            }<a name="line.1751"></a>
<FONT color="green">1752</FONT>        }<a name="line.1752"></a>
<FONT color="green">1753</FONT>    <a name="line.1753"></a>
<FONT color="green">1754</FONT>        //-----------------------------------------------------------------------<a name="line.1754"></a>
<FONT color="green">1755</FONT>        /**<a name="line.1755"></a>
<FONT color="green">1756</FONT>         * Returns the size of the specified file or directory. If the provided <a name="line.1756"></a>
<FONT color="green">1757</FONT>         * {@link File} is a regular file, then the file's length is returned.<a name="line.1757"></a>
<FONT color="green">1758</FONT>         * If the argument is a directory, then the size of the directory is<a name="line.1758"></a>
<FONT color="green">1759</FONT>         * calculated recursively. If a directory or subdirectory is security <a name="line.1759"></a>
<FONT color="green">1760</FONT>         * restricted, its size will not be included.<a name="line.1760"></a>
<FONT color="green">1761</FONT>         * <a name="line.1761"></a>
<FONT color="green">1762</FONT>         * @param file the regular file or directory to return the size <a name="line.1762"></a>
<FONT color="green">1763</FONT>         *        of (must not be &lt;code&gt;null&lt;/code&gt;).<a name="line.1763"></a>
<FONT color="green">1764</FONT>         * <a name="line.1764"></a>
<FONT color="green">1765</FONT>         * @return the length of the file, or recursive size of the directory, <a name="line.1765"></a>
<FONT color="green">1766</FONT>         *         provided (in bytes).<a name="line.1766"></a>
<FONT color="green">1767</FONT>         * <a name="line.1767"></a>
<FONT color="green">1768</FONT>         * @throws NullPointerException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1768"></a>
<FONT color="green">1769</FONT>         * @throws IllegalArgumentException if the file does not exist.<a name="line.1769"></a>
<FONT color="green">1770</FONT>         *         <a name="line.1770"></a>
<FONT color="green">1771</FONT>         * @since Commons IO 2.0<a name="line.1771"></a>
<FONT color="green">1772</FONT>         */<a name="line.1772"></a>
<FONT color="green">1773</FONT>        public static long sizeOf(File file) {<a name="line.1773"></a>
<FONT color="green">1774</FONT>    <a name="line.1774"></a>
<FONT color="green">1775</FONT>            if (!file.exists()) {<a name="line.1775"></a>
<FONT color="green">1776</FONT>                String message = file + " does not exist";<a name="line.1776"></a>
<FONT color="green">1777</FONT>                throw new IllegalArgumentException(message);<a name="line.1777"></a>
<FONT color="green">1778</FONT>            }<a name="line.1778"></a>
<FONT color="green">1779</FONT>    <a name="line.1779"></a>
<FONT color="green">1780</FONT>            if (file.isDirectory()) {<a name="line.1780"></a>
<FONT color="green">1781</FONT>                return sizeOfDirectory(file);<a name="line.1781"></a>
<FONT color="green">1782</FONT>            } else {<a name="line.1782"></a>
<FONT color="green">1783</FONT>                return file.length();<a name="line.1783"></a>
<FONT color="green">1784</FONT>            }<a name="line.1784"></a>
<FONT color="green">1785</FONT>    <a name="line.1785"></a>
<FONT color="green">1786</FONT>        }<a name="line.1786"></a>
<FONT color="green">1787</FONT>    <a name="line.1787"></a>
<FONT color="green">1788</FONT>        /**<a name="line.1788"></a>
<FONT color="green">1789</FONT>         * Counts the size of a directory recursively (sum of the length of all files).<a name="line.1789"></a>
<FONT color="green">1790</FONT>         *<a name="line.1790"></a>
<FONT color="green">1791</FONT>         * @param directory  directory to inspect, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1791"></a>
<FONT color="green">1792</FONT>         * @return size of directory in bytes, 0 if directory is security restricted<a name="line.1792"></a>
<FONT color="green">1793</FONT>         * @throws NullPointerException if the directory is &lt;code&gt;null&lt;/code&gt;<a name="line.1793"></a>
<FONT color="green">1794</FONT>         */<a name="line.1794"></a>
<FONT color="green">1795</FONT>        public static long sizeOfDirectory(File directory) {<a name="line.1795"></a>
<FONT color="green">1796</FONT>            if (!directory.exists()) {<a name="line.1796"></a>
<FONT color="green">1797</FONT>                String message = directory + " does not exist";<a name="line.1797"></a>
<FONT color="green">1798</FONT>                throw new IllegalArgumentException(message);<a name="line.1798"></a>
<FONT color="green">1799</FONT>            }<a name="line.1799"></a>
<FONT color="green">1800</FONT>    <a name="line.1800"></a>
<FONT color="green">1801</FONT>            if (!directory.isDirectory()) {<a name="line.1801"></a>
<FONT color="green">1802</FONT>                String message = directory + " is not a directory";<a name="line.1802"></a>
<FONT color="green">1803</FONT>                throw new IllegalArgumentException(message);<a name="line.1803"></a>
<FONT color="green">1804</FONT>            }<a name="line.1804"></a>
<FONT color="green">1805</FONT>    <a name="line.1805"></a>
<FONT color="green">1806</FONT>            long size = 0;<a name="line.1806"></a>
<FONT color="green">1807</FONT>    <a name="line.1807"></a>
<FONT color="green">1808</FONT>            File[] files = directory.listFiles();<a name="line.1808"></a>
<FONT color="green">1809</FONT>            if (files == null) {  // null if security restricted<a name="line.1809"></a>
<FONT color="green">1810</FONT>                return 0L;<a name="line.1810"></a>
<FONT color="green">1811</FONT>            }<a name="line.1811"></a>
<FONT color="green">1812</FONT>            for (File file : files) {<a name="line.1812"></a>
<FONT color="green">1813</FONT>                size += sizeOf(file);<a name="line.1813"></a>
<FONT color="green">1814</FONT>            }<a name="line.1814"></a>
<FONT color="green">1815</FONT>    <a name="line.1815"></a>
<FONT color="green">1816</FONT>            return size;<a name="line.1816"></a>
<FONT color="green">1817</FONT>        }<a name="line.1817"></a>
<FONT color="green">1818</FONT>    <a name="line.1818"></a>
<FONT color="green">1819</FONT>        //-----------------------------------------------------------------------<a name="line.1819"></a>
<FONT color="green">1820</FONT>        /**<a name="line.1820"></a>
<FONT color="green">1821</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is newer than the reference<a name="line.1821"></a>
<FONT color="green">1822</FONT>         * &lt;code&gt;File&lt;/code&gt;.<a name="line.1822"></a>
<FONT color="green">1823</FONT>         *<a name="line.1823"></a>
<FONT color="green">1824</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date must<a name="line.1824"></a>
<FONT color="green">1825</FONT>         * be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1825"></a>
<FONT color="green">1826</FONT>         * @param reference  the &lt;code&gt;File&lt;/code&gt; of which the modification date<a name="line.1826"></a>
<FONT color="green">1827</FONT>         * is used, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1827"></a>
<FONT color="green">1828</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified more<a name="line.1828"></a>
<FONT color="green">1829</FONT>         * recently than the reference &lt;code&gt;File&lt;/code&gt;<a name="line.1829"></a>
<FONT color="green">1830</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1830"></a>
<FONT color="green">1831</FONT>         * @throws IllegalArgumentException if the reference file is &lt;code&gt;null&lt;/code&gt; or doesn't exist<a name="line.1831"></a>
<FONT color="green">1832</FONT>         */<a name="line.1832"></a>
<FONT color="green">1833</FONT>         public static boolean isFileNewer(File file, File reference) {<a name="line.1833"></a>
<FONT color="green">1834</FONT>            if (reference == null) {<a name="line.1834"></a>
<FONT color="green">1835</FONT>                throw new IllegalArgumentException("No specified reference file");<a name="line.1835"></a>
<FONT color="green">1836</FONT>            }<a name="line.1836"></a>
<FONT color="green">1837</FONT>            if (!reference.exists()) {<a name="line.1837"></a>
<FONT color="green">1838</FONT>                throw new IllegalArgumentException("The reference file '"<a name="line.1838"></a>
<FONT color="green">1839</FONT>                        + reference + "' doesn't exist");<a name="line.1839"></a>
<FONT color="green">1840</FONT>            }<a name="line.1840"></a>
<FONT color="green">1841</FONT>            return isFileNewer(file, reference.lastModified());<a name="line.1841"></a>
<FONT color="green">1842</FONT>        }<a name="line.1842"></a>
<FONT color="green">1843</FONT>    <a name="line.1843"></a>
<FONT color="green">1844</FONT>        /**<a name="line.1844"></a>
<FONT color="green">1845</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is newer than the specified<a name="line.1845"></a>
<FONT color="green">1846</FONT>         * &lt;code&gt;Date&lt;/code&gt;.<a name="line.1846"></a>
<FONT color="green">1847</FONT>         * <a name="line.1847"></a>
<FONT color="green">1848</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date<a name="line.1848"></a>
<FONT color="green">1849</FONT>         * must be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1849"></a>
<FONT color="green">1850</FONT>         * @param date  the date reference, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1850"></a>
<FONT color="green">1851</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified<a name="line.1851"></a>
<FONT color="green">1852</FONT>         * after the given &lt;code&gt;Date&lt;/code&gt;.<a name="line.1852"></a>
<FONT color="green">1853</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1853"></a>
<FONT color="green">1854</FONT>         * @throws IllegalArgumentException if the date is &lt;code&gt;null&lt;/code&gt;<a name="line.1854"></a>
<FONT color="green">1855</FONT>         */<a name="line.1855"></a>
<FONT color="green">1856</FONT>        public static boolean isFileNewer(File file, Date date) {<a name="line.1856"></a>
<FONT color="green">1857</FONT>            if (date == null) {<a name="line.1857"></a>
<FONT color="green">1858</FONT>                throw new IllegalArgumentException("No specified date");<a name="line.1858"></a>
<FONT color="green">1859</FONT>            }<a name="line.1859"></a>
<FONT color="green">1860</FONT>            return isFileNewer(file, date.getTime());<a name="line.1860"></a>
<FONT color="green">1861</FONT>        }<a name="line.1861"></a>
<FONT color="green">1862</FONT>    <a name="line.1862"></a>
<FONT color="green">1863</FONT>        /**<a name="line.1863"></a>
<FONT color="green">1864</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is newer than the specified<a name="line.1864"></a>
<FONT color="green">1865</FONT>         * time reference.<a name="line.1865"></a>
<FONT color="green">1866</FONT>         *<a name="line.1866"></a>
<FONT color="green">1867</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date must<a name="line.1867"></a>
<FONT color="green">1868</FONT>         * be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1868"></a>
<FONT color="green">1869</FONT>         * @param timeMillis  the time reference measured in milliseconds since the<a name="line.1869"></a>
<FONT color="green">1870</FONT>         * epoch (00:00:00 GMT, January 1, 1970)<a name="line.1870"></a>
<FONT color="green">1871</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified after<a name="line.1871"></a>
<FONT color="green">1872</FONT>         * the given time reference.<a name="line.1872"></a>
<FONT color="green">1873</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1873"></a>
<FONT color="green">1874</FONT>         */<a name="line.1874"></a>
<FONT color="green">1875</FONT>         public static boolean isFileNewer(File file, long timeMillis) {<a name="line.1875"></a>
<FONT color="green">1876</FONT>            if (file == null) {<a name="line.1876"></a>
<FONT color="green">1877</FONT>                throw new IllegalArgumentException("No specified file");<a name="line.1877"></a>
<FONT color="green">1878</FONT>            }<a name="line.1878"></a>
<FONT color="green">1879</FONT>            if (!file.exists()) {<a name="line.1879"></a>
<FONT color="green">1880</FONT>                return false;<a name="line.1880"></a>
<FONT color="green">1881</FONT>            }<a name="line.1881"></a>
<FONT color="green">1882</FONT>            return file.lastModified() &gt; timeMillis;<a name="line.1882"></a>
<FONT color="green">1883</FONT>        }<a name="line.1883"></a>
<FONT color="green">1884</FONT>    <a name="line.1884"></a>
<FONT color="green">1885</FONT>    <a name="line.1885"></a>
<FONT color="green">1886</FONT>        //-----------------------------------------------------------------------<a name="line.1886"></a>
<FONT color="green">1887</FONT>        /**<a name="line.1887"></a>
<FONT color="green">1888</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is older than the reference<a name="line.1888"></a>
<FONT color="green">1889</FONT>         * &lt;code&gt;File&lt;/code&gt;.<a name="line.1889"></a>
<FONT color="green">1890</FONT>         *<a name="line.1890"></a>
<FONT color="green">1891</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date must<a name="line.1891"></a>
<FONT color="green">1892</FONT>         * be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1892"></a>
<FONT color="green">1893</FONT>         * @param reference  the &lt;code&gt;File&lt;/code&gt; of which the modification date<a name="line.1893"></a>
<FONT color="green">1894</FONT>         * is used, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1894"></a>
<FONT color="green">1895</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified before<a name="line.1895"></a>
<FONT color="green">1896</FONT>         * the reference &lt;code&gt;File&lt;/code&gt;<a name="line.1896"></a>
<FONT color="green">1897</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1897"></a>
<FONT color="green">1898</FONT>         * @throws IllegalArgumentException if the reference file is &lt;code&gt;null&lt;/code&gt; or doesn't exist<a name="line.1898"></a>
<FONT color="green">1899</FONT>         */<a name="line.1899"></a>
<FONT color="green">1900</FONT>         public static boolean isFileOlder(File file, File reference) {<a name="line.1900"></a>
<FONT color="green">1901</FONT>            if (reference == null) {<a name="line.1901"></a>
<FONT color="green">1902</FONT>                throw new IllegalArgumentException("No specified reference file");<a name="line.1902"></a>
<FONT color="green">1903</FONT>            }<a name="line.1903"></a>
<FONT color="green">1904</FONT>            if (!reference.exists()) {<a name="line.1904"></a>
<FONT color="green">1905</FONT>                throw new IllegalArgumentException("The reference file '"<a name="line.1905"></a>
<FONT color="green">1906</FONT>                        + reference + "' doesn't exist");<a name="line.1906"></a>
<FONT color="green">1907</FONT>            }<a name="line.1907"></a>
<FONT color="green">1908</FONT>            return isFileOlder(file, reference.lastModified());<a name="line.1908"></a>
<FONT color="green">1909</FONT>        }<a name="line.1909"></a>
<FONT color="green">1910</FONT>    <a name="line.1910"></a>
<FONT color="green">1911</FONT>        /**<a name="line.1911"></a>
<FONT color="green">1912</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is older than the specified<a name="line.1912"></a>
<FONT color="green">1913</FONT>         * &lt;code&gt;Date&lt;/code&gt;.<a name="line.1913"></a>
<FONT color="green">1914</FONT>         * <a name="line.1914"></a>
<FONT color="green">1915</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date<a name="line.1915"></a>
<FONT color="green">1916</FONT>         * must be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1916"></a>
<FONT color="green">1917</FONT>         * @param date  the date reference, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1917"></a>
<FONT color="green">1918</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified<a name="line.1918"></a>
<FONT color="green">1919</FONT>         * before the given &lt;code&gt;Date&lt;/code&gt;.<a name="line.1919"></a>
<FONT color="green">1920</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1920"></a>
<FONT color="green">1921</FONT>         * @throws IllegalArgumentException if the date is &lt;code&gt;null&lt;/code&gt;<a name="line.1921"></a>
<FONT color="green">1922</FONT>         */<a name="line.1922"></a>
<FONT color="green">1923</FONT>        public static boolean isFileOlder(File file, Date date) {<a name="line.1923"></a>
<FONT color="green">1924</FONT>            if (date == null) {<a name="line.1924"></a>
<FONT color="green">1925</FONT>                throw new IllegalArgumentException("No specified date");<a name="line.1925"></a>
<FONT color="green">1926</FONT>            }<a name="line.1926"></a>
<FONT color="green">1927</FONT>            return isFileOlder(file, date.getTime());<a name="line.1927"></a>
<FONT color="green">1928</FONT>        }<a name="line.1928"></a>
<FONT color="green">1929</FONT>    <a name="line.1929"></a>
<FONT color="green">1930</FONT>        /**<a name="line.1930"></a>
<FONT color="green">1931</FONT>         * Tests if the specified &lt;code&gt;File&lt;/code&gt; is older than the specified<a name="line.1931"></a>
<FONT color="green">1932</FONT>         * time reference.<a name="line.1932"></a>
<FONT color="green">1933</FONT>         *<a name="line.1933"></a>
<FONT color="green">1934</FONT>         * @param file  the &lt;code&gt;File&lt;/code&gt; of which the modification date must<a name="line.1934"></a>
<FONT color="green">1935</FONT>         * be compared, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1935"></a>
<FONT color="green">1936</FONT>         * @param timeMillis  the time reference measured in milliseconds since the<a name="line.1936"></a>
<FONT color="green">1937</FONT>         * epoch (00:00:00 GMT, January 1, 1970)<a name="line.1937"></a>
<FONT color="green">1938</FONT>         * @return true if the &lt;code&gt;File&lt;/code&gt; exists and has been modified before<a name="line.1938"></a>
<FONT color="green">1939</FONT>         * the given time reference.<a name="line.1939"></a>
<FONT color="green">1940</FONT>         * @throws IllegalArgumentException if the file is &lt;code&gt;null&lt;/code&gt;<a name="line.1940"></a>
<FONT color="green">1941</FONT>         */<a name="line.1941"></a>
<FONT color="green">1942</FONT>         public static boolean isFileOlder(File file, long timeMillis) {<a name="line.1942"></a>
<FONT color="green">1943</FONT>            if (file == null) {<a name="line.1943"></a>
<FONT color="green">1944</FONT>                throw new IllegalArgumentException("No specified file");<a name="line.1944"></a>
<FONT color="green">1945</FONT>            }<a name="line.1945"></a>
<FONT color="green">1946</FONT>            if (!file.exists()) {<a name="line.1946"></a>
<FONT color="green">1947</FONT>                return false;<a name="line.1947"></a>
<FONT color="green">1948</FONT>            }<a name="line.1948"></a>
<FONT color="green">1949</FONT>            return file.lastModified() &lt; timeMillis;<a name="line.1949"></a>
<FONT color="green">1950</FONT>        }<a name="line.1950"></a>
<FONT color="green">1951</FONT>    <a name="line.1951"></a>
<FONT color="green">1952</FONT>        //-----------------------------------------------------------------------<a name="line.1952"></a>
<FONT color="green">1953</FONT>        /**<a name="line.1953"></a>
<FONT color="green">1954</FONT>         * Computes the checksum of a file using the CRC32 checksum routine.<a name="line.1954"></a>
<FONT color="green">1955</FONT>         * The value of the checksum is returned.<a name="line.1955"></a>
<FONT color="green">1956</FONT>         *<a name="line.1956"></a>
<FONT color="green">1957</FONT>         * @param file  the file to checksum, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1957"></a>
<FONT color="green">1958</FONT>         * @return the checksum value<a name="line.1958"></a>
<FONT color="green">1959</FONT>         * @throws NullPointerException if the file or checksum is &lt;code&gt;null&lt;/code&gt;<a name="line.1959"></a>
<FONT color="green">1960</FONT>         * @throws IllegalArgumentException if the file is a directory<a name="line.1960"></a>
<FONT color="green">1961</FONT>         * @throws IOException if an IO error occurs reading the file<a name="line.1961"></a>
<FONT color="green">1962</FONT>         * @since Commons IO 1.3<a name="line.1962"></a>
<FONT color="green">1963</FONT>         */<a name="line.1963"></a>
<FONT color="green">1964</FONT>        public static long checksumCRC32(File file) throws IOException {<a name="line.1964"></a>
<FONT color="green">1965</FONT>            CRC32 crc = new CRC32();<a name="line.1965"></a>
<FONT color="green">1966</FONT>            checksum(file, crc);<a name="line.1966"></a>
<FONT color="green">1967</FONT>            return crc.getValue();<a name="line.1967"></a>
<FONT color="green">1968</FONT>        }<a name="line.1968"></a>
<FONT color="green">1969</FONT>    <a name="line.1969"></a>
<FONT color="green">1970</FONT>        /**<a name="line.1970"></a>
<FONT color="green">1971</FONT>         * Computes the checksum of a file using the specified checksum object.<a name="line.1971"></a>
<FONT color="green">1972</FONT>         * Multiple files may be checked using one &lt;code&gt;Checksum&lt;/code&gt; instance<a name="line.1972"></a>
<FONT color="green">1973</FONT>         * if desired simply by reusing the same checksum object.<a name="line.1973"></a>
<FONT color="green">1974</FONT>         * For example:<a name="line.1974"></a>
<FONT color="green">1975</FONT>         * &lt;pre&gt;<a name="line.1975"></a>
<FONT color="green">1976</FONT>         *   long csum = FileUtils.checksum(file, new CRC32()).getValue();<a name="line.1976"></a>
<FONT color="green">1977</FONT>         * &lt;/pre&gt;<a name="line.1977"></a>
<FONT color="green">1978</FONT>         *<a name="line.1978"></a>
<FONT color="green">1979</FONT>         * @param file  the file to checksum, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1979"></a>
<FONT color="green">1980</FONT>         * @param checksum  the checksum object to be used, must not be &lt;code&gt;null&lt;/code&gt;<a name="line.1980"></a>
<FONT color="green">1981</FONT>         * @return the checksum specified, updated with the content of the file<a name="line.1981"></a>
<FONT color="green">1982</FONT>         * @throws NullPointerException if the file or checksum is &lt;code&gt;null&lt;/code&gt;<a name="line.1982"></a>
<FONT color="green">1983</FONT>         * @throws IllegalArgumentException if the file is a directory<a name="line.1983"></a>
<FONT color="green">1984</FONT>         * @throws IOException if an IO error occurs reading the file<a name="line.1984"></a>
<FONT color="green">1985</FONT>         * @since Commons IO 1.3<a name="line.1985"></a>
<FONT color="green">1986</FONT>         */<a name="line.1986"></a>
<FONT color="green">1987</FONT>        public static Checksum checksum(File file, Checksum checksum) throws IOException {<a name="line.1987"></a>
<FONT color="green">1988</FONT>            if (file.isDirectory()) {<a name="line.1988"></a>
<FONT color="green">1989</FONT>                throw new IllegalArgumentException("Checksums can't be computed on directories");<a name="line.1989"></a>
<FONT color="green">1990</FONT>            }<a name="line.1990"></a>
<FONT color="green">1991</FONT>            InputStream in = null;<a name="line.1991"></a>
<FONT color="green">1992</FONT>            try {<a name="line.1992"></a>
<FONT color="green">1993</FONT>                in = new CheckedInputStream(new FileInputStream(file), checksum);<a name="line.1993"></a>
<FONT color="green">1994</FONT>                IOUtils.copy(in, new NullOutputStream());<a name="line.1994"></a>
<FONT color="green">1995</FONT>            } finally {<a name="line.1995"></a>
<FONT color="green">1996</FONT>                IOUtils.closeQuietly(in);<a name="line.1996"></a>
<FONT color="green">1997</FONT>            }<a name="line.1997"></a>
<FONT color="green">1998</FONT>            return checksum;<a name="line.1998"></a>
<FONT color="green">1999</FONT>        }<a name="line.1999"></a>
<FONT color="green">2000</FONT>    <a name="line.2000"></a>
<FONT color="green">2001</FONT>        /**<a name="line.2001"></a>
<FONT color="green">2002</FONT>         * Moves a directory.<a name="line.2002"></a>
<FONT color="green">2003</FONT>         * &lt;p&gt;<a name="line.2003"></a>
<FONT color="green">2004</FONT>         * When the destination directory is on another file system, do a "copy and delete".<a name="line.2004"></a>
<FONT color="green">2005</FONT>         *<a name="line.2005"></a>
<FONT color="green">2006</FONT>         * @param srcDir the directory to be moved<a name="line.2006"></a>
<FONT color="green">2007</FONT>         * @param destDir the destination directory<a name="line.2007"></a>
<FONT color="green">2008</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.2008"></a>
<FONT color="green">2009</FONT>         * @throws IOException if source or destination is invalid<a name="line.2009"></a>
<FONT color="green">2010</FONT>         * @throws IOException if an IO error occurs moving the file<a name="line.2010"></a>
<FONT color="green">2011</FONT>         * @since Commons IO 1.4<a name="line.2011"></a>
<FONT color="green">2012</FONT>         */<a name="line.2012"></a>
<FONT color="green">2013</FONT>        public static void moveDirectory(File srcDir, File destDir) throws IOException {<a name="line.2013"></a>
<FONT color="green">2014</FONT>            if (srcDir == null) {<a name="line.2014"></a>
<FONT color="green">2015</FONT>                throw new NullPointerException("Source must not be null");<a name="line.2015"></a>
<FONT color="green">2016</FONT>            }<a name="line.2016"></a>
<FONT color="green">2017</FONT>            if (destDir == null) {<a name="line.2017"></a>
<FONT color="green">2018</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.2018"></a>
<FONT color="green">2019</FONT>            }<a name="line.2019"></a>
<FONT color="green">2020</FONT>            if (!srcDir.exists()) {<a name="line.2020"></a>
<FONT color="green">2021</FONT>                throw new FileNotFoundException("Source '" + srcDir + "' does not exist");<a name="line.2021"></a>
<FONT color="green">2022</FONT>            }<a name="line.2022"></a>
<FONT color="green">2023</FONT>            if (!srcDir.isDirectory()) {<a name="line.2023"></a>
<FONT color="green">2024</FONT>                throw new IOException("Source '" + srcDir + "' is not a directory");<a name="line.2024"></a>
<FONT color="green">2025</FONT>            }<a name="line.2025"></a>
<FONT color="green">2026</FONT>            if (destDir.exists()) {<a name="line.2026"></a>
<FONT color="green">2027</FONT>                throw new FileExistsException("Destination '" + destDir + "' already exists");<a name="line.2027"></a>
<FONT color="green">2028</FONT>            }<a name="line.2028"></a>
<FONT color="green">2029</FONT>            boolean rename = srcDir.renameTo(destDir);<a name="line.2029"></a>
<FONT color="green">2030</FONT>            if (!rename) {<a name="line.2030"></a>
<FONT color="green">2031</FONT>                copyDirectory( srcDir, destDir );<a name="line.2031"></a>
<FONT color="green">2032</FONT>                deleteDirectory( srcDir );<a name="line.2032"></a>
<FONT color="green">2033</FONT>                if (srcDir.exists()) {<a name="line.2033"></a>
<FONT color="green">2034</FONT>                    throw new IOException("Failed to delete original directory '" + srcDir +<a name="line.2034"></a>
<FONT color="green">2035</FONT>                            "' after copy to '" + destDir + "'");<a name="line.2035"></a>
<FONT color="green">2036</FONT>                }<a name="line.2036"></a>
<FONT color="green">2037</FONT>            }<a name="line.2037"></a>
<FONT color="green">2038</FONT>        }<a name="line.2038"></a>
<FONT color="green">2039</FONT>    <a name="line.2039"></a>
<FONT color="green">2040</FONT>        /**<a name="line.2040"></a>
<FONT color="green">2041</FONT>         * Moves a directory to another directory.<a name="line.2041"></a>
<FONT color="green">2042</FONT>         *<a name="line.2042"></a>
<FONT color="green">2043</FONT>         * @param src the file to be moved<a name="line.2043"></a>
<FONT color="green">2044</FONT>         * @param destDir the destination file<a name="line.2044"></a>
<FONT color="green">2045</FONT>         * @param createDestDir If &lt;code&gt;true&lt;/code&gt; create the destination directory,<a name="line.2045"></a>
<FONT color="green">2046</FONT>         * otherwise if &lt;code&gt;false&lt;/code&gt; throw an IOException<a name="line.2046"></a>
<FONT color="green">2047</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.2047"></a>
<FONT color="green">2048</FONT>         * @throws IOException if source or destination is invalid<a name="line.2048"></a>
<FONT color="green">2049</FONT>         * @throws IOException if an IO error occurs moving the file<a name="line.2049"></a>
<FONT color="green">2050</FONT>         * @since Commons IO 1.4<a name="line.2050"></a>
<FONT color="green">2051</FONT>         */<a name="line.2051"></a>
<FONT color="green">2052</FONT>        public static void moveDirectoryToDirectory(File src, File destDir, boolean createDestDir) throws IOException {<a name="line.2052"></a>
<FONT color="green">2053</FONT>            if (src == null) {<a name="line.2053"></a>
<FONT color="green">2054</FONT>                throw new NullPointerException("Source must not be null");<a name="line.2054"></a>
<FONT color="green">2055</FONT>            }<a name="line.2055"></a>
<FONT color="green">2056</FONT>            if (destDir == null) {<a name="line.2056"></a>
<FONT color="green">2057</FONT>                throw new NullPointerException("Destination directory must not be null");<a name="line.2057"></a>
<FONT color="green">2058</FONT>            }<a name="line.2058"></a>
<FONT color="green">2059</FONT>            if (!destDir.exists() &amp;&amp; createDestDir) {<a name="line.2059"></a>
<FONT color="green">2060</FONT>                destDir.mkdirs();<a name="line.2060"></a>
<FONT color="green">2061</FONT>            }<a name="line.2061"></a>
<FONT color="green">2062</FONT>            if (!destDir.exists()) {<a name="line.2062"></a>
<FONT color="green">2063</FONT>                throw new FileNotFoundException("Destination directory '" + destDir +<a name="line.2063"></a>
<FONT color="green">2064</FONT>                        "' does not exist [createDestDir=" + createDestDir +"]");<a name="line.2064"></a>
<FONT color="green">2065</FONT>            }<a name="line.2065"></a>
<FONT color="green">2066</FONT>            if (!destDir.isDirectory()) {<a name="line.2066"></a>
<FONT color="green">2067</FONT>                throw new IOException("Destination '" + destDir + "' is not a directory");<a name="line.2067"></a>
<FONT color="green">2068</FONT>            }<a name="line.2068"></a>
<FONT color="green">2069</FONT>            moveDirectory(src, new File(destDir, src.getName()));<a name="line.2069"></a>
<FONT color="green">2070</FONT>        <a name="line.2070"></a>
<FONT color="green">2071</FONT>        }<a name="line.2071"></a>
<FONT color="green">2072</FONT>    <a name="line.2072"></a>
<FONT color="green">2073</FONT>        /**<a name="line.2073"></a>
<FONT color="green">2074</FONT>         * Moves a file.<a name="line.2074"></a>
<FONT color="green">2075</FONT>         * &lt;p&gt;<a name="line.2075"></a>
<FONT color="green">2076</FONT>         * When the destination file is on another file system, do a "copy and delete".<a name="line.2076"></a>
<FONT color="green">2077</FONT>         *<a name="line.2077"></a>
<FONT color="green">2078</FONT>         * @param srcFile the file to be moved<a name="line.2078"></a>
<FONT color="green">2079</FONT>         * @param destFile the destination file<a name="line.2079"></a>
<FONT color="green">2080</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.2080"></a>
<FONT color="green">2081</FONT>         * @throws IOException if source or destination is invalid<a name="line.2081"></a>
<FONT color="green">2082</FONT>         * @throws IOException if an IO error occurs moving the file<a name="line.2082"></a>
<FONT color="green">2083</FONT>         * @since Commons IO 1.4<a name="line.2083"></a>
<FONT color="green">2084</FONT>         */<a name="line.2084"></a>
<FONT color="green">2085</FONT>        public static void moveFile(File srcFile, File destFile) throws IOException {<a name="line.2085"></a>
<FONT color="green">2086</FONT>            if (srcFile == null) {<a name="line.2086"></a>
<FONT color="green">2087</FONT>                throw new NullPointerException("Source must not be null");<a name="line.2087"></a>
<FONT color="green">2088</FONT>            }<a name="line.2088"></a>
<FONT color="green">2089</FONT>            if (destFile == null) {<a name="line.2089"></a>
<FONT color="green">2090</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.2090"></a>
<FONT color="green">2091</FONT>            }<a name="line.2091"></a>
<FONT color="green">2092</FONT>            if (!srcFile.exists()) {<a name="line.2092"></a>
<FONT color="green">2093</FONT>                throw new FileNotFoundException("Source '" + srcFile + "' does not exist");<a name="line.2093"></a>
<FONT color="green">2094</FONT>            }<a name="line.2094"></a>
<FONT color="green">2095</FONT>            if (srcFile.isDirectory()) {<a name="line.2095"></a>
<FONT color="green">2096</FONT>                throw new IOException("Source '" + srcFile + "' is a directory");<a name="line.2096"></a>
<FONT color="green">2097</FONT>            }<a name="line.2097"></a>
<FONT color="green">2098</FONT>            if (destFile.exists()) {<a name="line.2098"></a>
<FONT color="green">2099</FONT>                throw new FileExistsException("Destination '" + destFile + "' already exists");<a name="line.2099"></a>
<FONT color="green">2100</FONT>            }<a name="line.2100"></a>
<FONT color="green">2101</FONT>            if (destFile.isDirectory()) {<a name="line.2101"></a>
<FONT color="green">2102</FONT>                throw new IOException("Destination '" + destFile + "' is a directory");<a name="line.2102"></a>
<FONT color="green">2103</FONT>            }<a name="line.2103"></a>
<FONT color="green">2104</FONT>            boolean rename = srcFile.renameTo(destFile);<a name="line.2104"></a>
<FONT color="green">2105</FONT>            if (!rename) {<a name="line.2105"></a>
<FONT color="green">2106</FONT>                copyFile( srcFile, destFile );<a name="line.2106"></a>
<FONT color="green">2107</FONT>                if (!srcFile.delete()) {<a name="line.2107"></a>
<FONT color="green">2108</FONT>                    FileUtils.deleteQuietly(destFile);<a name="line.2108"></a>
<FONT color="green">2109</FONT>                    throw new IOException("Failed to delete original file '" + srcFile +<a name="line.2109"></a>
<FONT color="green">2110</FONT>                            "' after copy to '" + destFile + "'");<a name="line.2110"></a>
<FONT color="green">2111</FONT>                }<a name="line.2111"></a>
<FONT color="green">2112</FONT>            }<a name="line.2112"></a>
<FONT color="green">2113</FONT>        }<a name="line.2113"></a>
<FONT color="green">2114</FONT>    <a name="line.2114"></a>
<FONT color="green">2115</FONT>        /**<a name="line.2115"></a>
<FONT color="green">2116</FONT>         * Moves a file to a directory.<a name="line.2116"></a>
<FONT color="green">2117</FONT>         *<a name="line.2117"></a>
<FONT color="green">2118</FONT>         * @param srcFile the file to be moved<a name="line.2118"></a>
<FONT color="green">2119</FONT>         * @param destDir the destination file<a name="line.2119"></a>
<FONT color="green">2120</FONT>         * @param createDestDir If &lt;code&gt;true&lt;/code&gt; create the destination directory,<a name="line.2120"></a>
<FONT color="green">2121</FONT>         * otherwise if &lt;code&gt;false&lt;/code&gt; throw an IOException<a name="line.2121"></a>
<FONT color="green">2122</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.2122"></a>
<FONT color="green">2123</FONT>         * @throws IOException if source or destination is invalid<a name="line.2123"></a>
<FONT color="green">2124</FONT>         * @throws IOException if an IO error occurs moving the file<a name="line.2124"></a>
<FONT color="green">2125</FONT>         * @since Commons IO 1.4<a name="line.2125"></a>
<FONT color="green">2126</FONT>         */<a name="line.2126"></a>
<FONT color="green">2127</FONT>        public static void moveFileToDirectory(File srcFile, File destDir, boolean createDestDir) throws IOException {<a name="line.2127"></a>
<FONT color="green">2128</FONT>            if (srcFile == null) {<a name="line.2128"></a>
<FONT color="green">2129</FONT>                throw new NullPointerException("Source must not be null");<a name="line.2129"></a>
<FONT color="green">2130</FONT>            }<a name="line.2130"></a>
<FONT color="green">2131</FONT>            if (destDir == null) {<a name="line.2131"></a>
<FONT color="green">2132</FONT>                throw new NullPointerException("Destination directory must not be null");<a name="line.2132"></a>
<FONT color="green">2133</FONT>            }<a name="line.2133"></a>
<FONT color="green">2134</FONT>            if (!destDir.exists() &amp;&amp; createDestDir) {<a name="line.2134"></a>
<FONT color="green">2135</FONT>                destDir.mkdirs();<a name="line.2135"></a>
<FONT color="green">2136</FONT>            }<a name="line.2136"></a>
<FONT color="green">2137</FONT>            if (!destDir.exists()) {<a name="line.2137"></a>
<FONT color="green">2138</FONT>                throw new FileNotFoundException("Destination directory '" + destDir +<a name="line.2138"></a>
<FONT color="green">2139</FONT>                        "' does not exist [createDestDir=" + createDestDir +"]");<a name="line.2139"></a>
<FONT color="green">2140</FONT>            }<a name="line.2140"></a>
<FONT color="green">2141</FONT>            if (!destDir.isDirectory()) {<a name="line.2141"></a>
<FONT color="green">2142</FONT>                throw new IOException("Destination '" + destDir + "' is not a directory");<a name="line.2142"></a>
<FONT color="green">2143</FONT>            }<a name="line.2143"></a>
<FONT color="green">2144</FONT>            moveFile(srcFile, new File(destDir, srcFile.getName()));<a name="line.2144"></a>
<FONT color="green">2145</FONT>        }<a name="line.2145"></a>
<FONT color="green">2146</FONT>    <a name="line.2146"></a>
<FONT color="green">2147</FONT>        /**<a name="line.2147"></a>
<FONT color="green">2148</FONT>         * Moves a file or directory to the destination directory.<a name="line.2148"></a>
<FONT color="green">2149</FONT>         * &lt;p&gt;<a name="line.2149"></a>
<FONT color="green">2150</FONT>         * When the destination is on another file system, do a "copy and delete".<a name="line.2150"></a>
<FONT color="green">2151</FONT>         *<a name="line.2151"></a>
<FONT color="green">2152</FONT>         * @param src the file or directory to be moved<a name="line.2152"></a>
<FONT color="green">2153</FONT>         * @param destDir the destination directory <a name="line.2153"></a>
<FONT color="green">2154</FONT>         * @param createDestDir If &lt;code&gt;true&lt;/code&gt; create the destination directory,<a name="line.2154"></a>
<FONT color="green">2155</FONT>         * otherwise if &lt;code&gt;false&lt;/code&gt; throw an IOException<a name="line.2155"></a>
<FONT color="green">2156</FONT>         * @throws NullPointerException if source or destination is &lt;code&gt;null&lt;/code&gt;<a name="line.2156"></a>
<FONT color="green">2157</FONT>         * @throws IOException if source or destination is invalid<a name="line.2157"></a>
<FONT color="green">2158</FONT>         * @throws IOException if an IO error occurs moving the file<a name="line.2158"></a>
<FONT color="green">2159</FONT>         * @since Commons IO 1.4<a name="line.2159"></a>
<FONT color="green">2160</FONT>         */<a name="line.2160"></a>
<FONT color="green">2161</FONT>        public static void moveToDirectory(File src, File destDir, boolean createDestDir) throws IOException {<a name="line.2161"></a>
<FONT color="green">2162</FONT>            if (src == null) {<a name="line.2162"></a>
<FONT color="green">2163</FONT>                throw new NullPointerException("Source must not be null");<a name="line.2163"></a>
<FONT color="green">2164</FONT>            }<a name="line.2164"></a>
<FONT color="green">2165</FONT>            if (destDir == null) {<a name="line.2165"></a>
<FONT color="green">2166</FONT>                throw new NullPointerException("Destination must not be null");<a name="line.2166"></a>
<FONT color="green">2167</FONT>            }<a name="line.2167"></a>
<FONT color="green">2168</FONT>            if (!src.exists()) {<a name="line.2168"></a>
<FONT color="green">2169</FONT>                throw new FileNotFoundException("Source '" + src + "' does not exist");<a name="line.2169"></a>
<FONT color="green">2170</FONT>            }<a name="line.2170"></a>
<FONT color="green">2171</FONT>            if (src.isDirectory()) {<a name="line.2171"></a>
<FONT color="green">2172</FONT>                moveDirectoryToDirectory(src, destDir, createDestDir);<a name="line.2172"></a>
<FONT color="green">2173</FONT>            } else {<a name="line.2173"></a>
<FONT color="green">2174</FONT>                moveFileToDirectory(src, destDir, createDestDir);<a name="line.2174"></a>
<FONT color="green">2175</FONT>            }<a name="line.2175"></a>
<FONT color="green">2176</FONT>        }<a name="line.2176"></a>
<FONT color="green">2177</FONT>    <a name="line.2177"></a>
<FONT color="green">2178</FONT>        /**<a name="line.2178"></a>
<FONT color="green">2179</FONT>         * Determines whether the specified file is a Symbolic Link rather than an actual file.<a name="line.2179"></a>
<FONT color="green">2180</FONT>         * &lt;p&gt;<a name="line.2180"></a>
<FONT color="green">2181</FONT>         * Will not return true if there is a Symbolic Link anywhere in the path,<a name="line.2181"></a>
<FONT color="green">2182</FONT>         * only if the specific file is.<a name="line.2182"></a>
<FONT color="green">2183</FONT>         *<a name="line.2183"></a>
<FONT color="green">2184</FONT>         * @param file the file to check<a name="line.2184"></a>
<FONT color="green">2185</FONT>         * @return true if the file is a Symbolic Link<a name="line.2185"></a>
<FONT color="green">2186</FONT>         * @throws IOException if an IO error occurs while checking the file<a name="line.2186"></a>
<FONT color="green">2187</FONT>         * @since Commons IO 2.0<a name="line.2187"></a>
<FONT color="green">2188</FONT>         */<a name="line.2188"></a>
<FONT color="green">2189</FONT>        public static boolean isSymlink(File file) throws IOException {<a name="line.2189"></a>
<FONT color="green">2190</FONT>            if (file == null) {<a name="line.2190"></a>
<FONT color="green">2191</FONT>                throw new NullPointerException("File must not be null");<a name="line.2191"></a>
<FONT color="green">2192</FONT>            }<a name="line.2192"></a>
<FONT color="green">2193</FONT>            if (FilenameUtils.isSystemWindows()) {<a name="line.2193"></a>
<FONT color="green">2194</FONT>                return false;<a name="line.2194"></a>
<FONT color="green">2195</FONT>            }<a name="line.2195"></a>
<FONT color="green">2196</FONT>            File fileInCanonicalDir = null;<a name="line.2196"></a>
<FONT color="green">2197</FONT>            if (file.getParent() == null) {<a name="line.2197"></a>
<FONT color="green">2198</FONT>                fileInCanonicalDir = file;<a name="line.2198"></a>
<FONT color="green">2199</FONT>            } else {<a name="line.2199"></a>
<FONT color="green">2200</FONT>                File canonicalDir = file.getParentFile().getCanonicalFile();<a name="line.2200"></a>
<FONT color="green">2201</FONT>                fileInCanonicalDir = new File(canonicalDir, file.getName());<a name="line.2201"></a>
<FONT color="green">2202</FONT>            }<a name="line.2202"></a>
<FONT color="green">2203</FONT>            <a name="line.2203"></a>
<FONT color="green">2204</FONT>            if (fileInCanonicalDir.getCanonicalFile().equals(fileInCanonicalDir.getAbsoluteFile())) {<a name="line.2204"></a>
<FONT color="green">2205</FONT>                return false;<a name="line.2205"></a>
<FONT color="green">2206</FONT>            } else {<a name="line.2206"></a>
<FONT color="green">2207</FONT>                return true;<a name="line.2207"></a>
<FONT color="green">2208</FONT>            }<a name="line.2208"></a>
<FONT color="green">2209</FONT>        }<a name="line.2209"></a>
<FONT color="green">2210</FONT>    }<a name="line.2210"></a>




























































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